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12738469320 = 2333511794879
BaseRepresentation
bin10111101110100010…
…11001110111001000
31012212202200021211000
423313101121313020
5202042022004240
65504005335000
7630446126343
oct136721316710
935782607730
1012738469320
1154475965a5
122576107460
131280152b15
1488bb2b45a
154e84e1430
hex2f7459dc8

12738469320 has 64 divisors (see below), whose sum is σ = 42461568000. Its totient is φ = 3396924864.

The previous prime is 12738469283. The next prime is 12738469333. The reversal of 12738469320 is 2396483721.

12738469320 is a `hidden beast` number, since 127 + 38 + 469 + 32 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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, 5896360 + ... + 5898519.

It is an arithmetic number, because the mean of its divisors is an integer number (663462000).

Almost surely, 212738469320 is an apocalyptic number.

12738469320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12738469320 is an abundant number, since it is smaller than the sum of its proper divisors (29723098680).

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

12738469320 is a wasteful number, since it uses less digits than its factorization.

12738469320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11794899 (or 11794889 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 12738469320 in words is "twelve billion, seven hundred thirty-eight million, four hundred sixty-nine thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 90 108 120 135 180 216 270 360 540 1080 11794879 23589758 35384637 47179516 58974395 70769274 94359032 106153911 117948790 141538548 176923185 212307822 235897580 283077096 318461733 353846370 424615644 471795160 530769555 636923466 707692740 849231288 1061539110 1273846932 1415385480 1592308665 2123078220 2547693864 3184617330 4246156440 6369234660 12738469320