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56123746241 = 691745910889
BaseRepresentation
bin110100010001001111…
…000110011111000001
312100212100201201020012
4310101033012133001
51404420134334431
641441034354305
74024540654223
oct642117063701
9170770651205
1056123746241
1121890434262
12aa6388b995
1353a5674904
142a05b52413
1516d72c322b
hexd113c67c1

56123746241 has 8 divisors (see below), whose sum is σ = 56217664800. Its totient is φ = 56029865760.

The previous prime is 56123746183. The next prime is 56123746247. The reversal of 56123746241 is 14264732165.

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 56123746241 - 234 = 38943877057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56123746247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5148725 + ... + 5159613.

It is an arithmetic number, because the mean of its divisors is an integer number (7027208100).

Almost surely, 256123746241 is an apocalyptic number.

It is an amenable number.

56123746241 is a deficient number, since it is larger than the sum of its proper divisors (93918559).

56123746241 is a wasteful number, since it uses less digits than its factorization.

56123746241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19039.

The product of its digits is 241920, while the sum is 41.

The spelling of 56123746241 in words is "fifty-six billion, one hundred twenty-three million, seven hundred forty-six thousand, two hundred forty-one".

Divisors: 1 691 7459 10889 5154169 7524299 81221051 56123746241