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88221042012 = 22341333153831
BaseRepresentation
bin101001000101001100…
…0100100010101011100
322102201021110021112110
41102022120210111130
52421134041321022
6104310031034020
76242125325055
oct1221230442534
9272637407473
1088221042012
1134461529684
121512106b910
13841c3bba0c
1443ac94172c
1524650cd00c
hex148a62455c

88221042012 has 48 divisors (see below), whose sum is σ = 210937031424. Its totient is φ = 28680624000.

The previous prime is 88221042011. The next prime is 88221042023. The reversal of 88221042012 is 21024012288.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88221042011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1611937 + ... + 1665767.

It is an arithmetic number, because the mean of its divisors is an integer number (4394521488).

Almost surely, 288221042012 is an apocalyptic number.

88221042012 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

88221042012 is an abundant number, since it is smaller than the sum of its proper divisors (122715989412).

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

88221042012 is a wasteful number, since it uses less digits than its factorization.

88221042012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57210 (or 57208 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The spelling of 88221042012 in words is "eighty-eight billion, two hundred twenty-one million, forty-two thousand, twelve".

Divisors: 1 2 3 4 6 12 41 82 123 164 246 492 3331 6662 9993 13324 19986 39972 53831 107662 136571 161493 215324 273142 322986 409713 546284 645972 819426 1638852 2207071 4414142 6621213 8828284 13242426 26484852 179311061 358622122 537933183 717244244 1075866366 2151732732 7351753501 14703507002 22055260503 29407014004 44110521006 88221042012