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12000522870 = 23357217229233
BaseRepresentation
bin10110010110100100…
…10111001001110110
31010222100002201121000
423023102113021312
5144034113212440
65302444504130
7603245522100
oct131322271166
933870081530
1012000522870
1150a8a894a6
1223aab4b046
1311932b880b
1481bb16570
154a3825730
hex2cb497276

12000522870 has 384 divisors, whose sum is σ = 39757910400. Its totient is φ = 2559320064.

The previous prime is 12000522869. The next prime is 12000522889. The reversal of 12000522870 is 7822500021.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 51504274 + ... + 51504506.

It is an arithmetic number, because the mean of its divisors is an integer number (103536225).

Almost surely, 212000522870 is an apocalyptic number.

12000522870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12000522870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19878955200).

12000522870 is an abundant number, since it is smaller than the sum of its proper divisors (27757387530).

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

12000522870 is a wasteful number, since it uses less digits than its factorization.

12000522870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The spelling of 12000522870 in words is "twelve billion, five hundred twenty-two thousand, eight hundred seventy".