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12739545000 = 2333547131761
BaseRepresentation
bin10111101110101011…
…00000011110101000
31012212211200221101000
423313111200132220
5202042310420000
65504044355000
7630461226420
oct136725403650
935784627330
1012739545000
115448160796
122576545a60
13128043b610
1488bd2b480
154e8655000
hex2f75607a8

12739545000 has 1280 divisors, whose sum is σ = 58571251200. Its totient is φ = 2488320000.

The previous prime is 12739544971. The next prime is 12739545001. The reversal of 12739545000 is 54593721.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12739545001) by changing a digit.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 208844970 + ... + 208845030.

It is an arithmetic number, because the mean of its divisors is an integer number (45758790).

Almost surely, 212739545000 is an apocalyptic number.

12739545000 is a gapful number since it is divisible by the number (10) 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 12739545000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29285625600).

12739545000 is an abundant number, since it is smaller than the sum of its proper divisors (45831706200).

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

12739545000 is a wasteful number, since it uses less digits than its factorization.

12739545000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The spelling of 12739545000 in words is "twelve billion, seven hundred thirty-nine million, five hundred forty-five thousand".