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56103685 = 5113133259
BaseRepresentation
bin1101011000000…
…1001100000101
310220120100210021
43112001030011
5103330304220
65322255141
71250605411
oct326011405
9126510707
1056103685
112973a590
12169574b1
13b814661
147645d41
154dd34aa
hex3581305

56103685 has 16 divisors (see below), whose sum is σ = 73702080. Its totient is φ = 40659840.

The previous prime is 56103683. The next prime is 56103721. The reversal of 56103685 is 58630165.

It is not a de Polignac number, because 56103685 - 21 = 56103683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56103685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56103683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15586 + ... + 18844.

It is an arithmetic number, because the mean of its divisors is an integer number (4606380).

Almost surely, 256103685 is an apocalyptic number.

56103685 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56103685 is a deficient number, since it is larger than the sum of its proper divisors (17598395).

56103685 is a wasteful number, since it uses less digits than its factorization.

56103685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3588.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 56103685 is about 7490.2393152689. The cubic root of 56103685 is about 382.8222127259.

The spelling of 56103685 in words is "fifty-six million, one hundred three thousand, six hundred eighty-five".

Divisors: 1 5 11 55 313 1565 3259 3443 16295 17215 35849 179245 1020067 5100335 11220737 56103685