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56134872 = 23327179139
BaseRepresentation
bin1101011000100…
…0110011011000
310220121221120100
43112020303120
5103332303442
65323055400
71251065343
oct326106330
9126557510
1056134872
1129760a62
1216971560
13b825901
14765345a
154ddc84c
hex3588cd8

56134872 has 96 divisors (see below), whose sum is σ = 157248000. Its totient is φ = 18083520.

The previous prime is 56134853. The next prime is 56134907. The reversal of 56134872 is 27843165.

It is a super-2 number, since 2×561348722 = 6302247708912768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 403779 + ... + 403917.

It is an arithmetic number, because the mean of its divisors is an integer number (1638000).

Almost surely, 256134872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56134872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78624000).

56134872 is an abundant number, since it is smaller than the sum of its proper divisors (101113128).

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

56134872 is a wasteful number, since it uses less digits than its factorization.

56134872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 294 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 56134872 is about 7492.3208687295. The cubic root of 56134872 is about 382.8931341802.

The spelling of 56134872 in words is "fifty-six million, one hundred thirty-four thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 71 72 79 139 142 158 213 237 278 284 316 417 426 474 556 568 632 639 711 834 852 948 1112 1251 1278 1422 1668 1704 1896 2502 2556 2844 3336 5004 5112 5609 5688 9869 10008 10981 11218 16827 19738 21962 22436 29607 32943 33654 39476 43924 44872 50481 59214 65886 67308 78952 87848 88821 98829 100962 118428 131772 134616 177642 197658 201924 236856 263544 355284 395316 403848 710568 779651 790632 1559302 2338953 3118604 4677906 6237208 7016859 9355812 14033718 18711624 28067436 56134872