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12315425254 = 211255079241
BaseRepresentation
bin10110111100000111…
…00111100111100110
31011210021122102110021
423132003213213212
5200210222102004
65354014145354
7614121246616
oct133603474746
934707572407
1012315425254
11524a811300
1224784b225a
1312136036a2
1484b888a46
154c12c9d54
hex2de0e79e6

12315425254 has 24 divisors (see below), whose sum is σ = 20311069464. Its totient is φ = 5596298400.

The previous prime is 12315425249. The next prime is 12315425281. The reversal of 12315425254 is 45252451321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1328074 + ... + 1337314.

It is an arithmetic number, because the mean of its divisors is an integer number (846294561).

Almost surely, 212315425254 is an apocalyptic number.

12315425254 is a deficient number, since it is larger than the sum of its proper divisors (7995644210).

12315425254 is a wasteful number, since it uses less digits than its factorization.

12315425254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14772 (or 14761 counting only the distinct ones).

The product of its digits is 48000, while the sum is 34.

Adding to 12315425254 its reverse (45252451321), we get a palindrome (57567876575).

The spelling of 12315425254 in words is "twelve billion, three hundred fifteen million, four hundred twenty-five thousand, two hundred fifty-four".

Divisors: 1 2 11 22 121 242 5507 9241 11014 18482 60577 101651 121154 203302 666347 1118161 1332694 2236322 50890187 101780374 559792057 1119584114 6157712627 12315425254