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56906655 = 3513291829
BaseRepresentation
bin1101100100010…
…1001110011111
310222002011020220
43121011032133
5104032003110
65351412423
71260461421
oct331051637
9128064226
1056906655
112a1388a3
1217084113
13ba35ca0
1477b4811
154ee1370
hex364539f

56906655 has 16 divisors (see below), whose sum is σ = 98054880. Its totient is φ = 28015488.

The previous prime is 56906593. The next prime is 56906659. The reversal of 56906655 is 55660965.

It is not a de Polignac number, because 56906655 - 210 = 56905631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56906659) 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, 145720 + ... + 146109.

It is an arithmetic number, because the mean of its divisors is an integer number (6128430).

Almost surely, 256906655 is an apocalyptic number.

56906655 is a deficient number, since it is larger than the sum of its proper divisors (41148225).

56906655 is a wasteful number, since it uses less digits than its factorization.

56906655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291850.

The product of its (nonzero) digits is 243000, while the sum is 42.

The square root of 56906655 is about 7543.6499786244. The cubic root of 56906655 is about 384.6399174454.

The spelling of 56906655 in words is "fifty-six million, nine hundred six thousand, six hundred fifty-five".

Divisors: 1 3 5 13 15 39 65 195 291829 875487 1459145 3793777 4377435 11381331 18968885 56906655