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56430529 = 239236111
BaseRepresentation
bin1101011101000…
…0111111000001
310221011222010121
43113100333001
5103421234104
65333300241
71253436331
oct327207701
9127158117
1056430529
1129943101
1216a94681
13b8ca35c
1476cd0c1
154e4a254
hex35d0fc1

56430529 has 4 divisors (see below), whose sum is σ = 56666880. Its totient is φ = 56194180.

The previous prime is 56430487. The next prime is 56430541. The reversal of 56430529 is 92503465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92503465 = 518500693.

It is a cyclic number.

It is not a de Polignac number, because 56430529 - 27 = 56430401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56430494 and 56430503.

It is not an unprimeable number, because it can be changed into a prime (56430029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117817 + ... + 118294.

It is an arithmetic number, because the mean of its divisors is an integer number (14166720).

Almost surely, 256430529 is an apocalyptic number.

It is an amenable number.

56430529 is a deficient number, since it is larger than the sum of its proper divisors (236351).

56430529 is a wasteful number, since it uses less digits than its factorization.

56430529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236350.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 56430529 is about 7512.0256256219. The cubic root of 56430529 is about 383.5641779489.

The spelling of 56430529 in words is "fifty-six million, four hundred thirty thousand, five hundred twenty-nine".

Divisors: 1 239 236111 56430529