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15143314212 = 22321332357509
BaseRepresentation
bin11100001101001110…
…01010001100100100
31110002100211001211100
432012213022030210
5222003142023322
610542353440100
71044160022055
oct160647121444
943070731740
1015143314212
116471008114
122b27570030
131574446a70
14a3928c72c
155d96c2dac
hex3869ca324

15143314212 has 36 divisors (see below), whose sum is σ = 41223467740. Its totient is φ = 4659481152.

The previous prime is 15143314189. The next prime is 15143314223. The reversal of 15143314212 is 21241334151.

15143314212 is a `hidden beast` number, since 1 + 5 + 1 + 433 + 14 + 212 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7214124096 + 7929190116 = 84936^2 + 89046^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×151433142122 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16178287 + ... + 16179222.

Almost surely, 215143314212 is an apocalyptic number.

15143314212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15143314212 is an abundant number, since it is smaller than the sum of its proper divisors (26080153528).

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

15143314212 is a wasteful number, since it uses less digits than its factorization.

15143314212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32357532 (or 32357527 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

Adding to 15143314212 its reverse (21241334151), we get a palindrome (36384648363).

The spelling of 15143314212 in words is "fifteen billion, one hundred forty-three million, three hundred fourteen thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 32357509 64715018 97072527 129430036 194145054 291217581 388290108 420647617 582435162 841295234 1164870324 1261942851 1682590468 2523885702 3785828553 5047771404 7571657106 15143314212