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80476975690 = 2554714712427
BaseRepresentation
bin100101011110011001…
…1010011001001001010
321200201120121221122021
41022330303103021022
52304304101210230
6100545352515054
75546203002166
oct1127463231112
9250646557567
1080476975690
1131148177a71
121371b6aba8a
137786bb8057
143c76259ca6
1521602d9c7a
hex12bccd324a

80476975690 has 16 divisors (see below), whose sum is σ = 145123389792. Its totient is φ = 32131938384.

The previous prime is 80476975679. The next prime is 80476975703. The reversal of 80476975690 is 9657967408.

It is a super-2 number, since 2×804769756902 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7350744 + ... + 7361683.

It is an arithmetic number, because the mean of its divisors is an integer number (9070211862).

Almost surely, 280476975690 is an apocalyptic number.

80476975690 is a deficient number, since it is larger than the sum of its proper divisors (64646414102).

80476975690 is a wasteful number, since it uses less digits than its factorization.

80476975690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14712981.

The product of its (nonzero) digits is 22861440, while the sum is 61.

The spelling of 80476975690 in words is "eighty billion, four hundred seventy-six million, nine hundred seventy-five thousand, six hundred ninety".

Divisors: 1 2 5 10 547 1094 2735 5470 14712427 29424854 73562135 147124270 8047697569 16095395138 40238487845 80476975690