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56237142 = 2313898101
BaseRepresentation
bin1101011010000…
…1110001010110
310220211010212010
43112201301112
5103344042032
65325205050
71252002453
oct326416126
9126733763
1056237142
1129820885
1216a00786
13b860320
14767c82a
154e0cccc
hex35a1c56

56237142 has 32 divisors (see below), whose sum is σ = 122502240. Its totient is φ = 17107200.

The previous prime is 56237141. The next prime is 56237147. The reversal of 56237142 is 24173265.

56237142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×562371422 = 6325232280656328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56237141) 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 15 ways as a sum of consecutive naturals, for example, 2892 + ... + 10992.

It is an arithmetic number, because the mean of its divisors is an integer number (3828195).

Almost surely, 256237142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56237142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61251120).

56237142 is an abundant number, since it is smaller than the sum of its proper divisors (66265098).

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

56237142 is a wasteful number, since it uses less digits than its factorization.

56237142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8208.

The product of its digits is 10080, while the sum is 30.

The square root of 56237142 is about 7499.1427510083. The cubic root of 56237142 is about 383.1255192855.

The spelling of 56237142 in words is "fifty-six million, two hundred thirty-seven thousand, one hundred forty-two".

Divisors: 1 2 3 6 13 26 39 78 89 178 267 534 1157 2314 3471 6942 8101 16202 24303 48606 105313 210626 315939 631878 720989 1441978 2162967 4325934 9372857 18745714 28118571 56237142