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13421339888 = 2411312459923
BaseRepresentation
bin11000111111111100…
…10110010011110000
31021122100121201010112
430133332112103300
5204441330334023
610055441520452
7653410335545
oct143776262360
937570551115
1013421339888
115767aa6340
122726943128
13135b775548
149146c6bcc
1553842d478
hex31ff964f0

13421339888 has 40 divisors (see below), whose sum is σ = 29282935296. Its totient is φ = 5903812800.

The previous prime is 13421339879. The next prime is 13421339917. The reversal of 13421339888 is 88893312431.

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, 1224506 + ... + 1235417.

Almost surely, 213421339888 is an apocalyptic number.

It is an amenable number.

13421339888 is an abundant number, since it is smaller than the sum of its proper divisors (15861595408).

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

13421339888 is a wasteful number, since it uses less digits than its factorization.

13421339888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459973 (or 2459967 counting only the distinct ones).

The product of its digits is 995328, while the sum is 50.

The spelling of 13421339888 in words is "thirteen billion, four hundred twenty-one million, three hundred thirty-nine thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 11 16 22 31 44 62 88 124 176 248 341 496 682 1364 2728 5456 2459923 4919846 9839692 19679384 27059153 39358768 54118306 76257613 108236612 152515226 216473224 305030452 432946448 610060904 838833743 1220121808 1677667486 3355334972 6710669944 13421339888