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12068720790 = 235757470099
BaseRepresentation
bin10110011110101101…
…00001000010010110
31011011002102112112220
423033112201002112
5144204043031130
65313322323210
7605034301620
oct131726410226
934132375486
1012068720790
115133529615
122409959506
1311a4476009
14826bc9c10
154a97e7410
hex2cf5a1096

12068720790 has 32 divisors (see below), whose sum is σ = 33102777600. Its totient is φ = 2758564704.

The previous prime is 12068720749. The next prime is 12068720821. The reversal of 12068720790 is 9702786021.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28734840 + ... + 28735259.

It is an arithmetic number, because the mean of its divisors is an integer number (1034461800).

Almost surely, 212068720790 is an apocalyptic number.

12068720790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12068720790 is an abundant number, since it is smaller than the sum of its proper divisors (21034056810).

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

12068720790 is a wasteful number, since it uses less digits than its factorization.

12068720790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57470116.

The product of its (nonzero) digits is 84672, while the sum is 42.

The spelling of 12068720790 in words is "twelve billion, sixty-eight million, seven hundred twenty thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 57470099 114940198 172410297 287350495 344820594 402290693 574700990 804581386 862051485 1206872079 1724102970 2011453465 2413744158 4022906930 6034360395 12068720790