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12112507470 = 235728239801
BaseRepresentation
bin10110100011111011…
…00011001001001110
31011021010211010120210
423101331203021032
5144301300214340
65321525023250
7606105420600
oct132175431116
934233733523
1012112507470
115156216158
122420554b26
1311b05672ab
1482c947170
154ad596180
hex2d1f6324e

12112507470 has 48 divisors (see below), whose sum is σ = 33816147408. Its totient is φ = 2768572800.

The previous prime is 12112507423. The next prime is 12112507489. The reversal of 12112507470 is 7470521121.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4118431 + ... + 4121370.

It is an arithmetic number, because the mean of its divisors is an integer number (704503071).

Almost surely, 212112507470 is an apocalyptic number.

12112507470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12112507470 is an abundant number, since it is smaller than the sum of its proper divisors (21703639938).

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

12112507470 is a wasteful number, since it uses less digits than its factorization.

12112507470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8239825 (or 8239818 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 30.

The spelling of 12112507470 in words is "twelve billion, one hundred twelve million, five hundred seven thousand, four hundred seventy".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 49 70 98 105 147 210 245 294 490 735 1470 8239801 16479602 24719403 41199005 49438806 57678607 82398010 115357214 123597015 173035821 247194030 288393035 346071642 403750249 576786070 807500498 865179105 1211250747 1730358210 2018751245 2422501494 4037502490 6056253735 12112507470