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56900039 = 771114487
BaseRepresentation
bin1101100100001…
…1100111000111
310222001211011212
43121003213013
5104031300124
65351322035
71260433220
oct331034707
9128054155
1056900039
112a133929
121708031b
13ba32c81
1477b2247
154ede40e
hex36439c7

56900039 has 8 divisors (see below), whose sum is σ = 65945088. Its totient is φ = 48084120.

The previous prime is 56900029. The next prime is 56900083. The reversal of 56900039 is 93000965.

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

It is not a de Polignac number, because 56900039 - 24 = 56900023 is a prime.

It is a super-2 number, since 2×569000392 = 6475228876403042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56899978 and 56900014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56900029) 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, 56747 + ... + 57740.

It is an arithmetic number, because the mean of its divisors is an integer number (8243136).

Almost surely, 256900039 is an apocalyptic number.

56900039 is a deficient number, since it is larger than the sum of its proper divisors (9045049).

56900039 is a wasteful number, since it uses less digits than its factorization.

56900039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114565.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 56900039 is about 7543.2114513647. The cubic root of 56900039 is about 384.6250107160.

The spelling of 56900039 in words is "fifty-six million, nine hundred thousand, thirty-nine".

Divisors: 1 7 71 497 114487 801409 8128577 56900039