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12712329216 = 2143531103
BaseRepresentation
bin10111101011011011…
…01100000000000000
31012210221111020100000
423311231230000000
5202013324013331
65501233200000
7630011005206
oct136555540000
935727436300
1012712329216
115433862104
122569400000
1312778cc9c2
14888485076
154e607b0e6
hex2f5b6c000

12712329216 has 360 divisors, whose sum is σ = 39693681664. Its totient is φ = 4060938240.

The previous prime is 12712329193. The next prime is 12712329229. The reversal of 12712329216 is 61292321721.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123420621 + ... + 123420723.

Almost surely, 212712329216 is an apocalyptic number.

12712329216 is a gapful number since it is divisible by the number (16) 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 12712329216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19846840832).

12712329216 is an abundant number, since it is smaller than the sum of its proper divisors (26981352448).

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

12712329216 is an frugal number, since it uses more digits than its factorization.

12712329216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 139 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The spelling of 12712329216 in words is "twelve billion, seven hundred twelve million, three hundred twenty-nine thousand, two hundred sixteen".