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131000122010100 = 223527232712217847
BaseRepresentation
bin11101110010010011010111…
…101111001110100111110100
3122011211111012202000110122110
4131302103113233032213310
5114132301222213310400
61142340343015331020
736410306100423210
oct3562232757164764
9564744182013573
10131000122010100
1138816926788112
121283884b980a70
135813348bcc845
14244c6228c5940
1510229318b0e50
hex7724d7bce9f4

131000122010100 has 144 divisors (see below), whose sum is σ = 452007377676288. Its totient is φ = 28641020453760.

The previous prime is 131000122010089. The next prime is 131000122010203. The reversal of 131000122010100 is 1010221000131.

It is a super-2 number, since 2×1310001220101002 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1356060624 + ... + 1356157223.

It is an arithmetic number, because the mean of its divisors is an integer number (3138940122752).

Almost surely, 2131000122010100 is an apocalyptic number.

131000122010100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131000122010100 is an abundant number, since it is smaller than the sum of its proper divisors (321007255666188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131000122010100 is a wasteful number, since it uses less digits than its factorization.

131000122010100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2712217894 (or 2712217887 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 131000122010100 its reverse (1010221000131), we get a palindrome (132010343010231).

The spelling of 131000122010100 in words is "one hundred thirty-one trillion, one hundred twenty-two million, ten thousand, one hundred".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 23 25 28 30 35 42 46 50 60 69 70 75 84 92 100 105 115 138 140 150 161 175 210 230 276 300 322 345 350 420 460 483 525 575 644 690 700 805 966 1050 1150 1380 1610 1725 1932 2100 2300 2415 3220 3450 4025 4830 6900 8050 9660 12075 16100 24150 48300 2712217847 5424435694 8136653541 10848871388 13561089235 16273307082 18985524929 27122178470 32546614164 37971049858 40683267705 54244356940 56956574787 62381010481 67805446175 75942099716 81366535410 94927624645 113913149574 124762020962 135610892350 162733070820 187143031443 189855249290 203416338525 227826299148 249524041924 271221784700 284782873935 311905052405 374286062886 379710498580 406832677050 436667073367 474638123225 569565747870 623810104810 748572125772 813665354100 873334146734 935715157215 949276246450 1139131495740 1247620209620 1310001220101 1423914369675 1559525262025 1746668293468 1871430314430 1898552492900 2183335366835 2620002440202 2847828739350 3119050524050 3742860628860 4366670733670 4678575786075 5240004880404 5695657478700 6238101048100 6550006100505 8733341467340 9357151572150 10916676834175 13100012201010 18714303144300 21833353668350 26200024402020 32750030502525 43666707336700 65500061005050 131000122010100