Search a number
-
+
12873168252 = 22327311647871
BaseRepresentation
bin10111111110100110…
…01111010101111100
31020020011010201000100
423333103033111330
5202331012341002
65525220401100
7634003060530
oct137723172574
936204121010
1012873168252
11550662792a
1225b3246190
1312a2025329
148a1991bc0
1550524c11c
hex2ff4cf57c

12873168252 has 72 divisors (see below), whose sum is σ = 38388826112. Its totient is φ = 3559399200.

The previous prime is 12873168193. The next prime is 12873168271. The reversal of 12873168252 is 25286137821.

12873168252 is a `hidden beast` number, since 1 + 2 + 87 + 316 + 8 + 252 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12873168198 and 12873168207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 816124 + ... + 831747.

Almost surely, 212873168252 is an apocalyptic number.

12873168252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12873168252 is an abundant number, since it is smaller than the sum of its proper divisors (25515657860).

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

12873168252 is a wasteful number, since it uses less digits than its factorization.

12873168252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647919 (or 1647914 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The spelling of 12873168252 in words is "twelve billion, eight hundred seventy-three million, one hundred sixty-eight thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 31 36 42 62 63 84 93 124 126 186 217 252 279 372 434 558 651 868 1116 1302 1953 2604 3906 7812 1647871 3295742 4943613 6591484 9887226 11535097 14830839 19774452 23070194 29661678 34605291 46140388 51084001 59323356 69210582 102168002 103815873 138421164 153252003 204336004 207631746 306504006 357588007 415263492 459756009 613008012 715176014 919512018 1072764021 1430352028 1839024036 2145528042 3218292063 4291056084 6436584126 12873168252