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12013033120 = 255116825587
BaseRepresentation
bin10110011000000100…
…00101011010100000
31011000012122022102121
423030002011122200
5144100314024440
65304012554024
7603460045114
oct131402053240
934005568377
1012013033120
115105053650
1223b3182914
131195a78b2a
1481d651744
154a499734a
hex2cc0856a0

12013033120 has 48 divisors (see below), whose sum is σ = 30960867168. Its totient is φ = 4368375040.

The previous prime is 12013033111. The next prime is 12013033121. The reversal of 12013033120 is 2133031021.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 12013033094 and 12013033103.

It is not an unprimeable number, because it can be changed into a prime (12013033121) 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, 3411034 + ... + 3414553.

It is an arithmetic number, because the mean of its divisors is an integer number (645018066).

Almost surely, 212013033120 is an apocalyptic number.

12013033120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12013033120 is an abundant number, since it is smaller than the sum of its proper divisors (18947834048).

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

12013033120 is a wasteful number, since it uses less digits than its factorization.

12013033120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6825613 (or 6825605 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 12013033120 its reverse (2133031021), we get a palindrome (14146064141).

The spelling of 12013033120 in words is "twelve billion, thirteen million, thirty-three thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 80 88 110 160 176 220 352 440 880 1760 6825587 13651174 27302348 34127935 54604696 68255870 75081457 109209392 136511740 150162914 218418784 273023480 300325828 375407285 546046960 600651656 750814570 1092093920 1201303312 1501629140 2402606624 3003258280 6006516560 12013033120