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BaseRepresentation
bin110100100000011001…
…110000110000000010
312101112002112020212000
4310200121300300002
51410430304332132
641522204244430
74034050533144
oct644031606002
9171462466760
1056378199042
1121a01029430
12ab14b40716
1354162b5cb9
142a2b86ac94
1516ee7d687c
hexd20670c02

56378199042 has 64 divisors (see below), whose sum is σ = 141083320320. Its totient is φ = 16533190800.

The previous prime is 56378199023. The next prime is 56378199043. The reversal of 56378199042 is 24099187365.

56378199042 is a `hidden beast` number, since 563 + 78 + 1 + 9 + 9 + 0 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 56378199042.

It is not an unprimeable number, because it can be changed into a prime (56378199043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1512438 + ... + 1549265.

It is an arithmetic number, because the mean of its divisors is an integer number (2204426880).

It is a 2-persistent number, because it is pandigital, and so is 2⋅56378199042 = 112756398084, but 3⋅56378199042 = 169134597126 is not.

Almost surely, 256378199042 is an apocalyptic number.

56378199042 is an abundant number, since it is smaller than the sum of its proper divisors (84705121278).

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

56378199042 is a wasteful number, since it uses less digits than its factorization.

56378199042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3061756 (or 3061750 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 56378199042 in words is "fifty-six billion, three hundred seventy-eight million, one hundred ninety-nine thousand, forty-two".