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80706818337 = 326902272779
BaseRepresentation
bin100101100101010000…
…0000101000100100001
321201022121010011110220
41023022200011010201
52310241421141322
6101024243113253
75554663431315
oct1131240050441
9251277104426
1080706818337
1131255993172
1213784672829
1377c26c0812
143c989a9b45
15217558b55c
hex12ca805121

80706818337 has 4 divisors (see below), whose sum is σ = 107609091120. Its totient is φ = 53804545556.

The previous prime is 80706818251. The next prime is 80706818341. The reversal of 80706818337 is 73381860708.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80706818337 - 216 = 80706752801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80706818337.

It is not an unprimeable number, because it can be changed into a prime (80706818537) 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, 13451136387 + ... + 13451136392.

It is an arithmetic number, because the mean of its divisors is an integer number (26902272780).

Almost surely, 280706818337 is an apocalyptic number.

It is an amenable number.

80706818337 is a deficient number, since it is larger than the sum of its proper divisors (26902272783).

80706818337 is a wasteful number, since it uses less digits than its factorization.

80706818337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26902272782.

The product of its (nonzero) digits is 1354752, while the sum is 51.

The spelling of 80706818337 in words is "eighty billion, seven hundred six million, eight hundred eighteen thousand, three hundred thirty-seven".

Divisors: 1 3 26902272779 80706818337