Search a number
-
+
56810420537 = 135237983431
BaseRepresentation
bin110100111010001010…
…100011100100111001
312102122012211101021112
4310322022203210321
51412321431424122
642033124250105
74050546415133
oct647212434471
9172565741245
1056810420537
1122103001882
12b015840935
1354849c9770
142a6d01c053
1517277122e2
hexd3a2a3939

56810420537 has 8 divisors (see below), whose sum is σ = 61182354240. Its totient is φ = 52438758480.

The previous prime is 56810420519. The next prime is 56810420593. The reversal of 56810420537 is 73502401865.

56810420537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 56810420537 - 216 = 56810355001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56810420494 and 56810420503.

It is not an unprimeable number, because it can be changed into a prime (56810420137) 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, 639212 + ... + 722642.

It is an arithmetic number, because the mean of its divisors is an integer number (7647794280).

Almost surely, 256810420537 is an apocalyptic number.

It is an amenable number.

56810420537 is a deficient number, since it is larger than the sum of its proper divisors (4371933703).

56810420537 is a wasteful number, since it uses less digits than its factorization.

56810420537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135823.

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 56810420537 in words is "fifty-six billion, eight hundred ten million, four hundred twenty thousand, five hundred thirty-seven".

Divisors: 1 13 52379 83431 680927 1084603 4370032349 56810420537