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56500481 = 503112327
BaseRepresentation
bin1101011110001…
…0000100000001
310221022112002102
43113202010001
5103431003411
65335000145
71254150302
oct327420401
9127275072
1056500481
1129990714
1216b09055
13b92314b
14770a7a9
154e60d3b
hex35e2101

56500481 has 4 divisors (see below), whose sum is σ = 56613312. Its totient is φ = 56387652.

The previous prime is 56500453. The next prime is 56500523. The reversal of 56500481 is 18400565.

It is a happy number.

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: 18400565 = 53680113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-56500481 is a prime.

It is a super-2 number, since 2×565004812 = 6384608706462722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56500421) 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, 55661 + ... + 56666.

It is an arithmetic number, because the mean of its divisors is an integer number (14153328).

Almost surely, 256500481 is an apocalyptic number.

It is an amenable number.

56500481 is a deficient number, since it is larger than the sum of its proper divisors (112831).

56500481 is a wasteful number, since it uses less digits than its factorization.

56500481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112830.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 56500481 is about 7516.6801847624. The cubic root of 56500481 is about 383.7226028462.

The spelling of 56500481 in words is "fifty-six million, five hundred thousand, four hundred eighty-one".

Divisors: 1 503 112327 56500481