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12038684080 = 245374067123
BaseRepresentation
bin10110011011000111…
…11011110110110000
31011001222220111221011
423031203323312300
5144123400342310
65310330440304
7604221061213
oct131543736660
934058814834
1012038684080
115118583595
1223bb893094
13119b18a407
14822c0b77a
154a6d6278a
hex2cd8fbdb0

12038684080 has 40 divisors (see below), whose sum is σ = 28746432432. Its totient is φ = 4685324544.

The previous prime is 12038684059. The next prime is 12038684083. The reversal of 12038684080 is 8048683021.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (12038684083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2030602 + ... + 2036521.

Almost surely, 212038684080 is an apocalyptic number.

12038684080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12038684080 is an abundant number, since it is smaller than the sum of its proper divisors (16707748352).

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

12038684080 is a wasteful number, since it uses less digits than its factorization.

12038684080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4067173 (or 4067167 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 12038684080 in words is "twelve billion, thirty-eight million, six hundred eighty-four thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 37 40 74 80 148 185 296 370 592 740 1480 2960 4067123 8134246 16268492 20335615 32536984 40671230 65073968 81342460 150483551 162684920 300967102 325369840 601934204 752417755 1203868408 1504835510 2407736816 3009671020 6019342040 12038684080