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56146490 = 257376913
BaseRepresentation
bin1101011000101…
…1101000111010
310220122112111122
43112023220322
5103333141430
65323225242
71251144251
oct326135072
9126575448
1056146490
1129769764
1216978222
13b82ac9a
147657798
154de0ee5
hex358ba3a

56146490 has 16 divisors (see below), whose sum is σ = 102449448. Its totient is φ = 22150656.

The previous prime is 56146483. The next prime is 56146511. The reversal of 56146490 is 9464165.

It can be written as a sum of positive squares in 4 ways, for example, as 49182169 + 6964321 = 7013^2 + 2639^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56146490.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37727 + ... + 39186.

Almost surely, 256146490 is an apocalyptic number.

56146490 is a deficient number, since it is larger than the sum of its proper divisors (46302958).

56146490 is a wasteful number, since it uses less digits than its factorization.

56146490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76993.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 56146490 is about 7493.0961557957. The cubic root of 56146490 is about 382.9195476223.

The spelling of 56146490 in words is "fifty-six million, one hundred forty-six thousand, four hundred ninety".

Divisors: 1 2 5 10 73 146 365 730 76913 153826 384565 769130 5614649 11229298 28073245 56146490