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12155050325 = 521144200183
BaseRepresentation
bin10110101000111111…
…10101100101010101
31011101002212112102002
423110133311211111
5144343143102300
65330044525045
7610133136335
oct132437654525
934332775362
1012155050325
115178233240
122432850785
1311b9311392
1483445d0c5
154b219b5d5
hex2d47f5955

12155050325 has 12 divisors (see below), whose sum is σ = 16442468448. Its totient is φ = 8840036400.

The previous prime is 12155050249. The next prime is 12155050357. The reversal of 12155050325 is 52305055121.

It is not a de Polignac number, because 12155050325 - 210 = 12155049301 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon 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, 22099817 + ... + 22100366.

It is an arithmetic number, because the mean of its divisors is an integer number (1370205704).

Almost surely, 212155050325 is an apocalyptic number.

It is an amenable number.

12155050325 is a deficient number, since it is larger than the sum of its proper divisors (4287418123).

12155050325 is a wasteful number, since it uses less digits than its factorization.

12155050325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44200204 (or 44200199 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The spelling of 12155050325 in words is "twelve billion, one hundred fifty-five million, fifty thousand, three hundred twenty-five".

Divisors: 1 5 11 25 55 275 44200183 221000915 486202013 1105004575 2431010065 12155050325