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56000090 = 2523923431
BaseRepresentation
bin1101010110011…
…1111001011010
310220101002200102
43111213321122
5103314000330
65320135402
71246664366
oct325477132
9126332612
1056000090
1129679773
1216907562
13b7a9463
14761a2a6
154db2945
hex3567e5a

56000090 has 16 divisors (see below), whose sum is σ = 101226240. Its totient is φ = 22305360.

The previous prime is 56000089. The next prime is 56000093. The reversal of 56000090 is 9000065.

It is not an unprimeable number, because it can be changed into a prime (56000093) 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, 9326 + ... + 14105.

It is an arithmetic number, because the mean of its divisors is an integer number (6326640).

Almost surely, 256000090 is an apocalyptic number.

56000090 is a deficient number, since it is larger than the sum of its proper divisors (45226150).

56000090 is a wasteful number, since it uses less digits than its factorization.

56000090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23677.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 56000090 is about 7483.3207869234. The cubic root of 56000090 is about 382.5864415113.

The spelling of 56000090 in words is "fifty-six million, ninety", and thus it is an aban number and an uban number.

Divisors: 1 2 5 10 239 478 1195 2390 23431 46862 117155 234310 5600009 11200018 28000045 56000090