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56239638097 = 191443664669
BaseRepresentation
bin110100011000001001…
…001100011001010001
312101011102210121222011
4310120021030121101
51410134321404342
641500334342521
74030446015316
oct643011143121
9171142717864
1056239638097
112193a89a555
12aa9665aa41
1353c3690986
142a172bcd0d
1516e2566717
hexd1824c651

56239638097 has 8 divisors (see below), whose sum is σ = 56661788160. Its totient is φ = 55818818640.

The previous prime is 56239638089. The next prime is 56239638101. The reversal of 56239638097 is 79083693265.

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 56239638097 - 23 = 56239638089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56239638047) 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, 247722 + ... + 416947.

It is an arithmetic number, because the mean of its divisors is an integer number (7082723520).

Almost surely, 256239638097 is an apocalyptic number.

It is an amenable number.

56239638097 is a deficient number, since it is larger than the sum of its proper divisors (422150063).

56239638097 is a wasteful number, since it uses less digits than its factorization.

56239638097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665303.

The product of its (nonzero) digits is 14696640, while the sum is 58.

The spelling of 56239638097 in words is "fifty-six billion, two hundred thirty-nine million, six hundred thirty-eight thousand, ninety-seven".

Divisors: 1 191 443 84613 664669 126951779 294448367 56239638097