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12125456312 = 2317312876057
BaseRepresentation
bin10110100101011101…
…11100011110111000
31011022001012000001112
423102232330132320
5144313104100222
65323110335452
7606323451404
oct132256743670
934261160045
1012125456312
11516255a882
12242495a588
1311b314c128
14830558104
154ae7a2be2
hex2d2bbc7b8

12125456312 has 32 divisors (see below), whose sum is σ = 24849141120. Its totient is φ = 5522027520.

The previous prime is 12125456303. The next prime is 12125456381. The reversal of 12125456312 is 21365452121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1433813 + ... + 1442244.

It is an arithmetic number, because the mean of its divisors is an integer number (776535660).

Almost surely, 212125456312 is an apocalyptic number.

It is an amenable number.

12125456312 is an abundant number, since it is smaller than the sum of its proper divisors (12723684808).

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

12125456312 is a wasteful number, since it uses less digits than its factorization.

12125456312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876111 (or 2876107 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The spelling of 12125456312 in words is "twelve billion, one hundred twenty-five million, four hundred fifty-six thousand, three hundred twelve".

Divisors: 1 2 4 8 17 31 34 62 68 124 136 248 527 1054 2108 4216 2876057 5752114 11504228 23008456 48892969 89157767 97785938 178315534 195571876 356631068 391143752 713262136 1515682039 3031364078 6062728156 12125456312