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38972512512 = 283217995009
BaseRepresentation
bin100100010010111100…
…010101100100000000
310201121001122202122100
4210102330111210000
51114303430400022
625523112110400
72546526614313
oct442274254400
9121531582570
1038972512512
1115589a7052a
127677995400
1338a123cbbb
141c59d4697a
1510316c61ac
hex912f15900

38972512512 has 108 divisors (see below), whose sum is σ = 118977325740. Its totient is φ = 12226658304.

The previous prime is 38972512499. The next prime is 38972512531. The reversal of 38972512512 is 21521527983.

38972512512 is a `hidden beast` number, since 3 + 89 + 7 + 2 + 51 + 2 + 512 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14079246336 + 24893266176 = 118656^2 + 157776^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 458337 + ... + 536672.

It is an arithmetic number, because the mean of its divisors is an integer number (1101641905).

Almost surely, 238972512512 is an apocalyptic number.

38972512512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

38972512512 is an abundant number, since it is smaller than the sum of its proper divisors (80004813228).

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

38972512512 is a wasteful number, since it uses less digits than its factorization.

38972512512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995048 (or 995031 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The spelling of 38972512512 in words is "thirty-eight billion, nine hundred seventy-two million, five hundred twelve thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 17 18 24 32 34 36 48 51 64 68 72 96 102 128 136 144 153 192 204 256 272 288 306 384 408 544 576 612 768 816 1088 1152 1224 1632 2176 2304 2448 3264 4352 4896 6528 9792 13056 19584 39168 995009 1990018 2985027 3980036 5970054 7960072 8955081 11940108 15920144 16915153 17910162 23880216 31840288 33830306 35820324 47760432 50745459 63680576 67660612 71640648 95520864 101490918 127361152 135321224 143281296 152236377 191041728 202981836 254722304 270642448 286562592 304472754 382083456 405963672 541284896 573125184 608945508 764166912 811927344 1082569792 1146250368 1217891016 1623854688 2165139584 2292500736 2435782032 3247709376 4330279168 4871564064 6495418752 9743128128 12990837504 19486256256 38972512512