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54203272872 = 233717151125687
BaseRepresentation
bin110010011110110001…
…000100111010101000
312011220112000120000220
4302132301010322220
51342002014212442
640522312130040
73626131134420
oct623661047250
9164815016026
1054203272872
1120a95375191
12a608696920
13515a823338
1428a2a79480
1516238bdeec
hexc9ec44ea8

54203272872 has 128 divisors (see below), whose sum is σ = 165063536640. Its totient is φ = 14479027200.

The previous prime is 54203272859. The next prime is 54203272913. The reversal of 54203272872 is 27827230245.

It is a super-2 number, since 2×542032728722 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 368413 + ... + 494099.

It is an arithmetic number, because the mean of its divisors is an integer number (1289558880).

Almost surely, 254203272872 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 54203272872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82531768320).

54203272872 is an abundant number, since it is smaller than the sum of its proper divisors (110860263768).

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

54203272872 is a wasteful number, since it uses less digits than its factorization.

54203272872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125871 (or 125867 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 42.

The spelling of 54203272872 in words is "fifty-four billion, two hundred three million, two hundred seventy-two thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 12 14 17 21 24 28 34 42 51 56 68 84 102 119 136 151 168 204 238 302 357 408 453 476 604 714 906 952 1057 1208 1428 1812 2114 2567 2856 3171 3624 4228 5134 6342 7701 8456 10268 12684 15402 17969 20536 25368 30804 35938 53907 61608 71876 107814 125687 143752 215628 251374 377061 431256 502748 754122 879809 1005496 1508244 1759618 2136679 2639427 3016488 3519236 4273358 5278854 6410037 7038472 8546716 10557708 12820074 14956753 17093432 18978737 21115416 25640148 29913506 37957474 44870259 51280296 56936211 59827012 75914948 89740518 113872422 119654024 132851159 151829896 179481036 227744844 265702318 322638529 358962072 398553477 455489688 531404636 645277058 797106954 967915587 1062809272 1290554116 1594213908 1935831174 2258469703 2581108232 3188427816 3871662348 4516939406 6775409109 7743324696 9033878812 13550818218 18067757624 27101636436 54203272872