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56861312104 = 2335947941333
BaseRepresentation
bin110100111101001100…
…101100010001101000
312102202202120221101101
4310331030230101220
51412422443441404
642042143131144
74052035115062
oct647514542150
9172682527341
1056861312104
1122129801423
12b02a8a3ab4
13549240790c
142a75aa8732
15172be162a4
hexd3d32c468

56861312104 has 32 divisors (see below), whose sum is σ = 107137728000. Its totient is φ = 28291588672.

The previous prime is 56861312093. The next prime is 56861312107. The reversal of 56861312104 is 40121316865.

Adding to 56861312104 its reverse (40121316865), we get a palindrome (96982628969).

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (56861312107) 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, 1355022 + ... + 1396354.

It is an arithmetic number, because the mean of its divisors is an integer number (3348054000).

Almost surely, 256861312104 is an apocalyptic number.

It is an amenable number.

56861312104 is a deficient number, since it is larger than the sum of its proper divisors (50276415896).

56861312104 is a wasteful number, since it uses less digits than its factorization.

56861312104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42177 (or 42173 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 56861312104 in words is "fifty-six billion, eight hundred sixty-one million, three hundred twelve thousand, one hundred four".

Divisors: 1 2 4 8 359 479 718 958 1436 1916 2872 3832 41333 82666 165332 171961 330664 343922 687844 1375688 14838547 19798507 29677094 39597014 59354188 79194028 118708376 158388056 7107664013 14215328026 28430656052 56861312104