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12438705104 = 247194956983
BaseRepresentation
bin10111001010110011…
…11001001111010000
31012002212121200121122
423211121321033100
5200433302030404
65414140341412
7620146151240
oct134531711720
935085550548
1012438705104
115303363281
1224b1844868
131233008447
1485ddb9b20
154cc02c3be
hex2e56793d0

12438705104 has 40 divisors (see below), whose sum is σ = 27557462400. Its totient is φ = 5328044928.

The previous prime is 12438705079. The next prime is 12438705121. The reversal of 12438705104 is 40150783421.

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, 189797 + ... + 246779.

It is an arithmetic number, because the mean of its divisors is an integer number (688936560).

Almost surely, 212438705104 is an apocalyptic number.

12438705104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12438705104 is an abundant number, since it is smaller than the sum of its proper divisors (15118757296).

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

12438705104 is a wasteful number, since it uses less digits than its factorization.

12438705104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58947 (or 58941 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The spelling of 12438705104 in words is "twelve billion, four hundred thirty-eight million, seven hundred five thousand, one hundred four".

Divisors: 1 2 4 7 8 14 16 28 56 112 1949 3898 7796 13643 15592 27286 31184 54572 56983 109144 113966 218288 227932 398881 455864 797762 911728 1595524 3191048 6382096 111059867 222119734 444239468 777419069 888478936 1554838138 1776957872 3109676276 6219352552 12438705104