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102867972 = 2238572331
BaseRepresentation
bin1100010000110…
…10010000000100
321011120020022220
412020122100010
5202313233342
614112452340
72356235424
oct610322004
9234506286
10102867972
1153080259
122a54a0b0
131840902c
14d93a484
15906e5ec
hex621a404

102867972 has 12 divisors (see below), whose sum is σ = 240025296. Its totient is φ = 34289320.

The previous prime is 102867971. The next prime is 102867977. The reversal of 102867972 is 279768201.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (102867971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4286154 + ... + 4286177.

It is an arithmetic number, because the mean of its divisors is an integer number (20002108).

Almost surely, 2102867972 is an apocalyptic number.

102867972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102867972 is an abundant number, since it is smaller than the sum of its proper divisors (137157324).

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

102867972 is a wasteful number, since it uses less digits than its factorization.

102867972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8572338 (or 8572336 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 102867972 is about 10142.3849266334. The cubic root of 102867972 is about 468.5544418752.

The spelling of 102867972 in words is "one hundred two million, eight hundred sixty-seven thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 8572331 17144662 25716993 34289324 51433986 102867972