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131312113030 = 25739719312447
BaseRepresentation
bin111101001001011001…
…1111101010110000110
3110112221100220111022201
41322102303331112012
54122411400104110
6140153550145114
712326015354530
oct1722263752606
9415840814281
10131312113030
11507642a006a
12215481b219a
13c4c8991087
1464d9860850
153638147b3a
hex1e92cfd586

131312113030 has 64 divisors (see below), whose sum is σ = 271059167232. Its totient is φ = 44866293120.

The previous prime is 131312112989. The next prime is 131312113043. The reversal of 131312113030 is 30311213131.

It is a junction number, because it is equal to n+sod(n) for n = 131312112989 and 131312113007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53661267 + ... + 53663713.

It is an arithmetic number, because the mean of its divisors is an integer number (4235299488).

Almost surely, 2131312113030 is an apocalyptic number.

131312113030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131312113030 is an abundant number, since it is smaller than the sum of its proper divisors (139747054202).

131312113030 is a wasteful number, since it uses less digits than its factorization.

131312113030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4789.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 131312113030 its reverse (30311213131), we get a palindrome (161623326161).

The spelling of 131312113030 in words is "one hundred thirty-one billion, three hundred twelve million, one hundred thirteen thousand, thirty".

Divisors: 1 2 5 7 10 14 35 70 397 794 1931 1985 2447 2779 3862 3970 4894 5558 9655 12235 13517 13895 17129 19310 24470 27034 27790 34258 67585 85645 135170 171290 766607 971459 1533214 1942918 3833035 4725157 4857295 5366249 6800213 7666070 9450314 9714590 10732498 13600426 23625785 26831245 33076099 34001065 47251570 53662490 66152198 68002130 165380495 330760990 1875887329 3751774658 9379436645 13131211303 18758873290 26262422606 65656056515 131312113030