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131000223320 = 23529112931227
BaseRepresentation
bin111101000000000111…
…0001100011001011000
3110112010122000212001222
41322000032030121120
54121242024121240
6140103005231212
712315210345221
oct1720016143130
9415118025058
10131000223320
115061423577a
122147b862508
13c47918c555
1464aa274248
15361aa8aeb5
hex1e8038c658

131000223320 has 32 divisors (see below), whose sum is σ = 304914315600. Its totient is φ = 50593189248.

The previous prime is 131000223307. The next prime is 131000223373. The reversal of 131000223320 is 23322000131.

131000223320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1310002233202 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56464454 + ... + 56466773.

Almost surely, 2131000223320 is an apocalyptic number.

131000223320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131000223320 is an abundant number, since it is smaller than the sum of its proper divisors (173914092280).

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

131000223320 is a wasteful number, since it uses less digits than its factorization.

131000223320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112931267 (or 112931263 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 131000223320 its reverse (23322000131), we get a palindrome (154322223451).

The spelling of 131000223320 in words is "one hundred thirty-one billion, two hundred twenty-three thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 29 40 58 116 145 232 290 580 1160 112931227 225862454 451724908 564656135 903449816 1129312270 2258624540 3275005583 4517249080 6550011166 13100022332 16375027915 26200044664 32750055830 65500111660 131000223320