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56142265 = 561184073
BaseRepresentation
bin1101011000101…
…0100110111001
310220122022201011
43112022212321
5103333023030
65323153521
71251126034
oct326124671
9126568634
1056142265
1129766573
12169758a1
13b82909a
14765601b
154ddeb2a
hex358a9b9

56142265 has 8 divisors (see below), whose sum is σ = 68475528. Its totient is φ = 44177280.

The previous prime is 56142263. The next prime is 56142269. The reversal of 56142265 is 56224165.

It can be written as a sum of positive squares in 4 ways, for example, as 609961 + 55532304 = 781^2 + 7452^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56142265 - 21 = 56142263 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56142263) 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, 91732 + ... + 92341.

It is an arithmetic number, because the mean of its divisors is an integer number (8559441).

Almost surely, 256142265 is an apocalyptic number.

It is an amenable number.

56142265 is a deficient number, since it is larger than the sum of its proper divisors (12333263).

56142265 is a wasteful number, since it uses less digits than its factorization.

56142265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184139.

The product of its digits is 14400, while the sum is 31.

The square root of 56142265 is about 7492.8142243085. The cubic root of 56142265 is about 382.9099425359.

The spelling of 56142265 in words is "fifty-six million, one hundred forty-two thousand, two hundred sixty-five".

Divisors: 1 5 61 305 184073 920365 11228453 56142265