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2986138854 = 2327915113907
BaseRepresentation
bin1011000111111100…
…1101110011100110
321201002221120102100
42301333031303212
522103422420404
61212151152530
7133666522116
oct26177156346
97632846370
102986138854
1112a2663356
126b4075746
1338787038a
14204839046
15127256d39
hexb1fcdce6

2986138854 has 48 divisors (see below), whose sum is σ = 6595729920. Its totient is φ = 976201200.

The previous prime is 2986138823. The next prime is 2986138867. The reversal of 2986138854 is 4588316892.

It is a self number, because there is not a number n which added to its sum of digits gives 2986138854.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 207769 + ... + 221675.

It is an arithmetic number, because the mean of its divisors is an integer number (137411040).

Almost surely, 22986138854 is an apocalyptic number.

2986138854 is an abundant number, since it is smaller than the sum of its proper divisors (3609591066).

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

2986138854 is a wasteful number, since it uses less digits than its factorization.

2986138854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14145 (or 14142 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The square root of 2986138854 is about 54645.5748803140. The cubic root of 2986138854 is about 1440.0248925095.

The spelling of 2986138854 in words is "two billion, nine hundred eighty-six million, one hundred thirty-eight thousand, eight hundred fifty-four".

Divisors: 1 2 3 6 9 18 79 151 158 237 302 453 474 711 906 1359 1422 2718 11929 13907 23858 27814 35787 41721 71574 83442 107361 125163 214722 250326 1098653 2099957 2197306 3295959 4199914 6299871 6591918 9887877 12599742 18899613 19775754 37799226 165896603 331793206 497689809 995379618 1493069427 2986138854