Search a number
-
+
56628942 = 2313172047
BaseRepresentation
bin1101100000000…
…1011011001110
310221120001022020
43120001123032
5103444111232
65341431010
71255223646
oct330013316
9127501266
1056628942
1129a69187
1216b6b466
13b969766
147741526
154e88e2c
hex36016ce

56628942 has 16 divisors (see below), whose sum is σ = 114124032. Its totient is φ = 18731960.

The previous prime is 56628941. The next prime is 56628959. The reversal of 56628942 is 24982665.

It is a junction number, because it is equal to n+sod(n) for n = 56628894 and 56628903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56628941) 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, 35238 + ... + 36809.

It is an arithmetic number, because the mean of its divisors is an integer number (7132752).

Almost surely, 256628942 is an apocalyptic number.

56628942 is an abundant number, since it is smaller than the sum of its proper divisors (57495090).

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

56628942 is a wasteful number, since it uses less digits than its factorization.

56628942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72183.

The product of its digits is 207360, while the sum is 42.

The square root of 56628942 is about 7525.2203954436. The cubic root of 56628942 is about 384.0131967036.

The spelling of 56628942 in words is "fifty-six million, six hundred twenty-eight thousand, nine hundred forty-two".

Divisors: 1 2 3 6 131 262 393 786 72047 144094 216141 432282 9438157 18876314 28314471 56628942