Search a number
-
+
56807142 = 2377511801
BaseRepresentation
bin1101100010110…
…0111011100110
310221220002202020
43120230323212
5104020312032
65345324010
71256565330
oct330547346
9127802666
1056807142
112a080057
1217036606
13b9cc8c2
14778a450
154ec1b2c
hex362cee6

56807142 has 32 divisors (see below), whose sum is σ = 130089984. Its totient is φ = 16200000.

The previous prime is 56807141. The next prime is 56807167. The reversal of 56807142 is 24170865.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56807141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30642 + ... + 32442.

It is an arithmetic number, because the mean of its divisors is an integer number (4065312).

Almost surely, 256807142 is an apocalyptic number.

56807142 is an abundant number, since it is smaller than the sum of its proper divisors (73282842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56807142 is a wasteful number, since it uses less digits than its factorization.

56807142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2564.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 56807142 is about 7537.0512801758. The cubic root of 56807142 is about 384.4155792706.

The spelling of 56807142 in words is "fifty-six million, eight hundred seven thousand, one hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 751 1502 1801 2253 3602 4506 5257 5403 10514 10806 12607 15771 25214 31542 37821 75642 1352551 2705102 4057653 8115306 9467857 18935714 28403571 56807142