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12412720374 = 2317233522289
BaseRepresentation
bin10111000111101101…
…10001010011110110
31012001001201112021020
423203312301103312
5200410124022444
65411411402010
7616412245065
oct134366612366
935031645236
1012412720374
11529a72559a
1224a4bb3306
13122a80ac72
1485a7741dc
154c9ae8119
hex2e3db14f6

12412720374 has 32 divisors (see below), whose sum is σ = 26398625760. Its totient is φ = 3877466112.

The previous prime is 12412720303. The next prime is 12412720399. The reversal of 12412720374 is 47302721421.

It is a super-2 number, since 2×124127203742 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237379 + ... + 284910.

It is an arithmetic number, because the mean of its divisors is an integer number (824957055).

Almost surely, 212412720374 is an apocalyptic number.

12412720374 is an abundant number, since it is smaller than the sum of its proper divisors (13985905386).

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

12412720374 is a wasteful number, since it uses less digits than its factorization.

12412720374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522544.

The product of its (nonzero) digits is 18816, while the sum is 33.

The spelling of 12412720374 in words is "twelve billion, four hundred twelve million, seven hundred twenty thousand, three hundred seventy-four".

Divisors: 1 2 3 6 17 34 51 102 233 466 699 1398 3961 7922 11883 23766 522289 1044578 1566867 3133734 8878913 17757826 26636739 53273478 121693337 243386674 365080011 730160022 2068786729 4137573458 6206360187 12412720374