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80860291003 = 557145171079
BaseRepresentation
bin100101101001110100…
…1100001111110111011
321201201021220101101201
41023103221201332323
52311100213303003
6101051404355031
75561536063432
oct1132351417673
9251637811351
1080860291003
1131324587488
1213807b45a77
13781843724b
143cb111a119
152183ca4b1d
hex12d3a61fbb

80860291003 has 4 divisors (see below), whose sum is σ = 81005462640. Its totient is φ = 80715119368.

The previous prime is 80860290997. The next prime is 80860291049. The reversal of 80860291003 is 30019206808.

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

It is a cyclic number.

It is not a de Polignac number, because 80860291003 - 25 = 80860290971 is a prime.

It is a super-2 number, since 2×808602910032 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80860291063) 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, 72584983 + ... + 72586096.

It is an arithmetic number, because the mean of its divisors is an integer number (20251365660).

Almost surely, 280860291003 is an apocalyptic number.

80860291003 is a deficient number, since it is larger than the sum of its proper divisors (145171637).

80860291003 is a wasteful number, since it uses less digits than its factorization.

80860291003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145171636.

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 80860291003 in words is "eighty billion, eight hundred sixty million, two hundred ninety-one thousand, three".

Divisors: 1 557 145171079 80860291003