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18080422071398 = 2173197431760659
BaseRepresentation
bin1000001110001101011010…
…01000101000110001100110
32101000110201200221011210122
410013012231020220301212
54332212201022241043
6102242010425121542
73544160466604151
oct407065510506146
971013650834718
1018080422071398
1158409559a3875
1220401349292b2
13a11c90452c7b
14467150614c98
152154a744a368
hex1071ad228c66

18080422071398 has 32 divisors (see below), whose sum is σ = 29645345157120. Its totient is φ = 8233118513280.

The previous prime is 18080422071391. The next prime is 18080422071401. The reversal of 18080422071398 is 89317022408081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18080422071391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9388793 + ... + 11149451.

It is an arithmetic number, because the mean of its divisors is an integer number (926417036160).

Almost surely, 218080422071398 is an apocalyptic number.

18080422071398 is a deficient number, since it is larger than the sum of its proper divisors (11564923085722).

18080422071398 is a wasteful number, since it uses less digits than its factorization.

18080422071398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770452.

The product of its (nonzero) digits is 1548288, while the sum is 53.

The spelling of 18080422071398 in words is "eighteen trillion, eighty billion, four hundred twenty-two million, seventy-one thousand, three hundred ninety-eight".

Divisors: 1 2 17 31 34 62 527 1054 9743 19486 165631 302033 331262 604066 1760659 3521318 5134561 10269122 29931203 54580429 59862406 109160858 927867293 1855734586 17154100637 34308201274 291619710829 531777119747 583239421658 1063554239494 9040211035699 18080422071398