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51102326492 = 2271825083089
BaseRepresentation
bin101111100101111011…
…111001111011011100
311212220102001011021222
4233211323321323130
51314124143421432
635250500112512
73456235415420
oct574573717334
9155812034258
1051102326492
111a743a27288
129aa2095738
134a85256619
14268acb6b80
1514e153a112
hexbe5ef9edc

51102326492 has 12 divisors (see below), whose sum is σ = 102204653040. Its totient is φ = 21900997056.

The previous prime is 51102326491. The next prime is 51102326537. The reversal of 51102326492 is 29462320115.

51102326492 is an admirable number.

It is a super-2 number, since 2×511023264922 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51102326491) 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, 912541517 + ... + 912541572.

It is an arithmetic number, because the mean of its divisors is an integer number (8517054420).

Almost surely, 251102326492 is an apocalyptic number.

It is an amenable number.

51102326492 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51102326492 is a wasteful number, since it uses less digits than its factorization.

51102326492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825083100 (or 1825083098 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 51102326492 in words is "fifty-one billion, one hundred two million, three hundred twenty-six thousand, four hundred ninety-two".

Divisors: 1 2 4 7 14 28 1825083089 3650166178 7300332356 12775581623 25551163246 51102326492