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80749894708 = 227101199314327
BaseRepresentation
bin100101100110100010…
…0011001110000110100
321201102121011200011001
41023031010121300310
52310333433112313
6101032422253044
75556025531360
oct1131504316064
9251377150131
1080749894708
113127823507a
1213796b87184
1377cb5c36b2
143ca05c02a0
152179249add
hex12cd119c34

80749894708 has 48 divisors (see below), whose sum is σ = 163192022784. Its totient is φ = 34244870400.

The previous prime is 80749894679. The next prime is 80749894723.

80749894708 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 80749894708.

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, 5629041 + ... + 5643367.

It is an arithmetic number, because the mean of its divisors is an integer number (3399833808).

Almost surely, 280749894708 is an apocalyptic number.

It is an amenable number.

80749894708 is an abundant number, since it is smaller than the sum of its proper divisors (82442128076).

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

80749894708 is a wasteful number, since it uses less digits than its factorization.

80749894708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16432 (or 16430 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 64.

The spelling of 80749894708 in words is "eighty billion, seven hundred forty-nine million, eight hundred ninety-four thousand, seven hundred eight".

Divisors: 1 2 4 7 14 28 101 202 404 707 1414 1993 2828 3986 7972 13951 14327 27902 28654 55804 57308 100289 200578 201293 401156 402586 805172 1409051 1447027 2818102 2894054 5636204 5788108 10129189 20258378 28553711 40516756 57107422 114214844 199875977 399751954 799503908 2883924811 5767849622 11535699244 20187473677 40374947354 80749894708