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56261461 = 53220029
BaseRepresentation
bin1101011010011…
…1101101010101
310220212101012211
43112213231111
5103400331321
65325513421
71252133404
oct326475525
9126771184
1056261461
1129838083
1216a12871
13b86b409
14768763b
154e150e1
hex35a7b55

56261461 has 6 divisors (see below), whose sum is σ = 57345890. Its totient is φ = 55197168.

The previous prime is 56261453. The next prime is 56261507. The reversal of 56261461 is 16416265.

It can be written as a sum of positive squares in 3 ways, for example, as 12780625 + 43480836 = 3575^2 + 6594^2 .

It is not a de Polignac number, because 56261461 - 23 = 56261453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56261431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7206 + ... + 12823.

Almost surely, 256261461 is an apocalyptic number.

It is an amenable number.

56261461 is a deficient number, since it is larger than the sum of its proper divisors (1084429).

56261461 is an equidigital number, since it uses as much as digits as its factorization.

56261461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20135 (or 20082 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 56261461 is about 7500.7640277508. The cubic root of 56261461 is about 383.1807371626.

The spelling of 56261461 in words is "fifty-six million, two hundred sixty-one thousand, four hundred sixty-one".

Divisors: 1 53 2809 20029 1061537 56261461