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56893157 = 291961833
BaseRepresentation
bin1101100100000…
…1111011100101
310222001110201222
43121001323211
5104031040112
65351230125
71260404156
oct331017345
9128043658
1056893157
112a129742
1217078345
13ba2cab9
1477ad92d
154edc372
hex3641ee5

56893157 has 4 divisors (see below), whose sum is σ = 58855020. Its totient is φ = 54931296.

The previous prime is 56893139. The next prime is 56893159. The reversal of 56893157 is 75139865.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10666756 + 46226401 = 3266^2 + 6799^2 .

It is a cyclic number.

It is not a de Polignac number, because 56893157 - 26 = 56893093 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 (56893159) 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, 980888 + ... + 980945.

It is an arithmetic number, because the mean of its divisors is an integer number (14713755).

Almost surely, 256893157 is an apocalyptic number.

It is an amenable number.

56893157 is a deficient number, since it is larger than the sum of its proper divisors (1961863).

56893157 is a wasteful number, since it uses less digits than its factorization.

56893157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961862.

The product of its digits is 226800, while the sum is 44.

The square root of 56893157 is about 7542.7552658163. The cubic root of 56893157 is about 384.6095034270.

The spelling of 56893157 in words is "fifty-six million, eight hundred ninety-three thousand, one hundred fifty-seven".

Divisors: 1 29 1961833 56893157