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56801351 = 311182641
BaseRepresentation
bin1101100010101…
…1100001000111
310221212210210202
43120223201013
5104020120401
65345241115
71256542415
oct330534107
9127783722
1056801351
112a076772
121703319b
13b9ca089
1477882b5
154ec006b
hex362b847

56801351 has 4 divisors (see below), whose sum is σ = 56984304. Its totient is φ = 56618400.

The previous prime is 56801347. The next prime is 56801363. The reversal of 56801351 is 15310865.

56801351 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.

It is a cyclic number.

It is not a de Polignac number, because 56801351 - 22 = 56801347 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 (56801341) 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, 91010 + ... + 91631.

It is an arithmetic number, because the mean of its divisors is an integer number (14246076).

Almost surely, 256801351 is an apocalyptic number.

56801351 is the 3371-st centered decagonal number.

56801351 is a deficient number, since it is larger than the sum of its proper divisors (182953).

56801351 is a wasteful number, since it uses less digits than its factorization.

56801351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182952.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 56801351 is about 7536.6671015775. The cubic root of 56801351 is about 384.4025162050.

The spelling of 56801351 in words is "fifty-six million, eight hundred one thousand, three hundred fifty-one".

Divisors: 1 311 182641 56801351