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80671479051 = 326890493017
BaseRepresentation
bin100101100100001100…
…1010001010100001011
321201020010121202002110
41023020121101110023
52310203344312201
6101020541433403
75554054154322
oct1131031212413
9251203552073
1080671479051
1131237a46249
121377486b863
1377b82994b7
143c9400b0b9
15217240a6d6
hex12c865150b

80671479051 has 4 divisors (see below), whose sum is σ = 107561972072. Its totient is φ = 53780986032.

The previous prime is 80671479041. The next prime is 80671479107. The reversal of 80671479051 is 15097417608.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 80671479051 - 25 = 80671479019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80671479041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13445246506 + ... + 13445246511.

It is an arithmetic number, because the mean of its divisors is an integer number (26890493018).

Almost surely, 280671479051 is an apocalyptic number.

80671479051 is a deficient number, since it is larger than the sum of its proper divisors (26890493021).

80671479051 is a wasteful number, since it uses less digits than its factorization.

80671479051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26890493020.

The product of its (nonzero) digits is 423360, while the sum is 48.

The spelling of 80671479051 in words is "eighty billion, six hundred seventy-one million, four hundred seventy-nine thousand, fifty-one".

Divisors: 1 3 26890493017 80671479051