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12125516832 = 253311131723251
BaseRepresentation
bin10110100101011110…
…01011010000100000
31011022001022002002000
423102233023100200
5144313113014312
65323111524000
7606324123012
oct132257132040
934261262060
1012125516832
1151625a12a0
122424989600
1311b3170840
148305721b2
154ae7b5adc
hex2d2bcb420

12125516832 has 768 divisors, whose sum is σ = 46088663040. Its totient is φ = 3041280000.

The previous prime is 12125516813. The next prime is 12125516869. The reversal of 12125516832 is 23861552121.

12125516832 is a `hidden beast` number, since 1 + 2 + 12 + 551 + 68 + 32 = 666.

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

Its product of digits (28800) is a multiple of the sum of its prime divisors (320).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 48308707 + ... + 48308957.

It is an arithmetic number, because the mean of its divisors is an integer number (60011280).

Almost surely, 212125516832 is an apocalyptic number.

12125516832 is a gapful number since it is divisible by the number (12) 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 12125516832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23044331520).

12125516832 is an abundant number, since it is smaller than the sum of its proper divisors (33963146208).

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

12125516832 is a wasteful number, since it uses less digits than its factorization.

12125516832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 320 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The spelling of 12125516832 in words is "twelve billion, one hundred twenty-five million, five hundred sixteen thousand, eight hundred thirty-two".