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12290231252 = 22131318717923
BaseRepresentation
bin10110111001000111…
…00000101111010100
31011201112020102210002
423130203200233110
5200132244400002
65351314150432
7613364145665
oct133443405724
934645212702
1012290231252
115237573712
12246bb82418
13120b3220b0
148483ab36c
154bdea0002
hex2dc8e0bd4

12290231252 has 24 divisors (see below), whose sum is σ = 23165407776. Its totient is φ = 5671667808.

The previous prime is 12290231249. The next prime is 12290231287. The reversal of 12290231252 is 25213209221.

12290231252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 676763 + ... + 694685.

It is an arithmetic number, because the mean of its divisors is an integer number (965225324).

Almost surely, 212290231252 is an apocalyptic number.

It is an amenable number.

12290231252 is a deficient number, since it is larger than the sum of its proper divisors (10875176524).

12290231252 is a wasteful number, since it uses less digits than its factorization.

12290231252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31127 (or 31125 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 12290231252 in words is "twelve billion, two hundred ninety million, two hundred thirty-one thousand, two hundred fifty-two".

Divisors: 1 2 4 13 26 52 13187 17923 26374 35846 52748 71692 171431 232999 342862 465998 685724 931996 236350601 472701202 945402404 3072557813 6145115626 12290231252