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56993037 = 318997679
BaseRepresentation
bin1101100101101…
…0010100001101
310222020112202020
43121122110031
5104042234122
65353320353
71261301313
oct331322415
9128215666
1056993037
112a197792
12171060b9
13ba663ba
1477d80b3
15500bc5c
hex365a50d

56993037 has 4 divisors (see below), whose sum is σ = 75990720. Its totient is φ = 37995356.

The previous prime is 56993021. The next prime is 56993039. The reversal of 56993037 is 73039965.

56993037 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 56993037 - 24 = 56993021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56993037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56993039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9498837 + ... + 9498842.

It is an arithmetic number, because the mean of its divisors is an integer number (18997680).

Almost surely, 256993037 is an apocalyptic number.

It is an amenable number.

56993037 is a deficient number, since it is larger than the sum of its proper divisors (18997683).

56993037 is a wasteful number, since it uses less digits than its factorization.

56993037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18997682.

The product of its (nonzero) digits is 153090, while the sum is 42.

The square root of 56993037 is about 7549.3732852469. The cubic root of 56993037 is about 384.8344416630.

The spelling of 56993037 in words is "fifty-six million, nine hundred ninety-three thousand, thirty-seven".

Divisors: 1 3 18997679 56993037