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11902982057 = 23613844243
BaseRepresentation
bin10110001010111100…
…10001011110101001
31010201112120010202022
423011132101132221
5143334130411212
65245042114225
7600652451411
oct130536213651
933645503668
1011902982057
115058a1765a
12238234b975
131179026465
1480cba5641
15499ea9772
hex2c57917a9

11902982057 has 8 divisors (see below), whose sum is σ = 12440779584. Its totient is φ = 11366874288.

The previous prime is 11902982027. The next prime is 11902982071. The reversal of 11902982057 is 75028920911.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11902982057 - 214 = 11902965673 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11902981999 and 11902982017.

It is not an unprimeable number, because it can be changed into a prime (11902982027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408023 + ... + 436220.

It is an arithmetic number, because the mean of its divisors is an integer number (1555097448).

Almost surely, 211902982057 is an apocalyptic number.

It is an amenable number.

11902982057 is a deficient number, since it is larger than the sum of its proper divisors (537797527).

11902982057 is an equidigital number, since it uses as much as digits as its factorization.

11902982057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844879.

The product of its (nonzero) digits is 90720, while the sum is 44.

The spelling of 11902982057 in words is "eleven billion, nine hundred two million, nine hundred eighty-two thousand, fifty-seven".

Divisors: 1 23 613 14099 844243 19417589 517520959 11902982057