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252203042312015 = 53173991115119541
BaseRepresentation
bin111001010110000010011000…
…101111111000111101001111
31020001222101010122120022200112
4321112002120233320331033
5231024043312312441030
62252220251141150235
7104060032332521234
oct7126023057707517
91201871118508615
10252203042312015
11733a5789513473
12243527806bb37b
13aa9584c9428c2
14463c999c5b78b
151e255a72a1a95
hexe56098bf8f4f

252203042312015 has 64 divisors (see below), whose sum is σ = 317297104257024. Its totient is φ = 192207945600000.

The previous prime is 252203042311949. The next prime is 252203042312017. The reversal of 252203042312015 is 510213240302252.

It is not a de Polignac number, because 252203042312015 - 222 = 252203038117711 is a prime.

It is a super-2 number, since 2×2522030423120152 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252203042312017) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12906343145 + ... + 12906362685.

It is an arithmetic number, because the mean of its divisors is an integer number (4957767254016).

Almost surely, 2252203042312015 is an apocalyptic number.

252203042312015 is a deficient number, since it is larger than the sum of its proper divisors (65094061945009).

252203042312015 is a wasteful number, since it uses less digits than its factorization.

252203042312015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21792.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 252203042312015 its reverse (510213240302252), we get a palindrome (762416282614267).

The spelling of 252203042312015 in words is "two hundred fifty-two trillion, two hundred three billion, forty-two million, three hundred twelve thousand, fifteen".

Divisors: 1 5 31 73 155 365 991 1151 2263 4955 5755 11315 19541 30721 35681 72343 84023 97705 153605 178405 361715 420115 605771 1140641 1426493 2242633 2604713 3028855 5703205 7132465 11213165 13023565 19365131 22491691 35359871 44221283 83266793 96825655 112458455 176799355 221106415 416333965 600319061 697242421 1413654563 1641893443 2581270583 3001595305 3486212105 7068272815 8209467215 12906352915 22289265781 43823291453 50898696733 111446328905 219116457265 254493483665 690967239211 1627116402013 3454836196055 8135582010065 50440608462403 252203042312015