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12736394928 = 2432293049903
BaseRepresentation
bin10111101110010010…
…11111011010110000
31012212121202220021200
423313021133122300
5202041004114203
65503453051200
7630422366505
oct136711373260
935777686250
1012736394928
1154463aa024
122575486b00
13127c8a787a
1488b74b4ac
154e82319a3
hex2f725f6b0

12736394928 has 60 divisors (see below), whose sum is σ = 36873339360. Its totient is φ = 4099068288.

The previous prime is 12736394921. The next prime is 12736394941. The reversal of 12736394928 is 82949363721.

It is not an unprimeable number, because it can be changed into a prime (12736394921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1520776 + ... + 1529127.

It is an arithmetic number, because the mean of its divisors is an integer number (614555656).

Almost surely, 212736394928 is an apocalyptic number.

12736394928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12736394928 is an abundant number, since it is smaller than the sum of its proper divisors (24136944432).

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

12736394928 is a wasteful number, since it uses less digits than its factorization.

12736394928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049946 (or 3049937 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The spelling of 12736394928 in words is "twelve billion, seven hundred thirty-six million, three hundred ninety-four thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 29 36 48 58 72 87 116 144 174 232 261 348 464 522 696 1044 1392 2088 4176 3049903 6099806 9149709 12199612 18299418 24399224 27449127 36598836 48798448 54898254 73197672 88447187 109796508 146395344 176894374 219593016 265341561 353788748 439186032 530683122 707577496 796024683 1061366244 1415154992 1592049366 2122732488 3184098732 4245464976 6368197464 12736394928