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52872456 = 23371343563
BaseRepresentation
bin1100100110110…
…0010100001000
310200111012101010
43021230110020
5102013404311
65125123520
71211260050
oct311542410
9120435333
1052872456
112793294a
12158595a0
13ac529a0
147044560
154995da6
hex326c508

52872456 has 128 divisors (see below), whose sum is σ = 166763520. Its totient is φ = 13595904.

The previous prime is 52872451. The next prime is 52872467. The reversal of 52872456 is 65427825.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (52872451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93631 + ... + 94193.

It is an arithmetic number, because the mean of its divisors is an integer number (1302840).

Almost surely, 252872456 is an apocalyptic number.

52872456 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52872456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83381760).

52872456 is an abundant number, since it is smaller than the sum of its proper divisors (113891064).

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

52872456 is a wasteful number, since it uses less digits than its factorization.

52872456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 631 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 52872456 is about 7271.3448549770. The cubic root of 52872456 is about 375.3270178531.

The spelling of 52872456 in words is "fifty-two million, eight hundred seventy-two thousand, four hundred fifty-six".

Divisors: 1 2 3 4 6 7 8 12 13 14 21 24 26 28 39 42 43 52 56 78 84 86 91 104 129 156 168 172 182 258 273 301 312 344 364 516 546 559 563 602 728 903 1032 1092 1118 1126 1204 1677 1689 1806 2184 2236 2252 2408 3354 3378 3612 3913 3941 4472 4504 6708 6756 7224 7319 7826 7882 11739 11823 13416 13512 14638 15652 15764 21957 23478 23646 24209 29276 31304 31528 43914 46956 47292 48418 51233 58552 72627 87828 93912 94584 96836 102466 145254 153699 169463 175656 193672 204932 290508 307398 314717 338926 409864 508389 581016 614796 629434 677852 944151 1016778 1229592 1258868 1355704 1888302 2033556 2203019 2517736 3776604 4067112 4406038 6609057 7553208 8812076 13218114 17624152 26436228 52872456