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18080755077496 = 23171031290744937
BaseRepresentation
bin1000001110001110000001…
…11110111101000101111000
32101000111120220112122021211
410013013000332331011320
54332213341244434441
6102242103442412504
73544201652242336
oct407070076750570
971014526478254
1018080755077496
115841006971221
122040208361134
13a120144390b7
1446718293ab56
152154c67c8a81
hex1071c0fbd178

18080755077496 has 32 divisors (see below), whose sum is σ = 36244117859040. Its totient is φ = 8425982942208.

The previous prime is 18080755077481. The next prime is 18080755077509. The reversal of 18080755077496 is 69477055708081.

It is a congruent number.

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, 645358461 + ... + 645386476.

It is an arithmetic number, because the mean of its divisors is an integer number (1132628683095).

Almost surely, 218080755077496 is an apocalyptic number.

It is an amenable number.

18080755077496 is an abundant number, since it is smaller than the sum of its proper divisors (18163362781544).

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

18080755077496 is a wasteful number, since it uses less digits than its factorization.

18080755077496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290745063 (or 1290745059 counting only the distinct ones).

The product of its (nonzero) digits is 118540800, while the sum is 67.

The spelling of 18080755077496 in words is "eighteen trillion, eighty billion, seven hundred fifty-five million, seventy-seven thousand, four hundred ninety-six".

Divisors: 1 2 4 8 17 34 68 103 136 206 412 824 1751 3502 7004 14008 1290744937 2581489874 5162979748 10325959496 21942663929 43885327858 87770655716 132946728511 175541311432 265893457022 531786914044 1063573828088 2260094384687 4520188769374 9040377538748 18080755077496