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12755331652 = 2273531290503
BaseRepresentation
bin10111110000100011…
…01110101001000100
31012220221101222120211
423320101232221010
5202110331103102
65505411005204
7631042346560
oct137021565104
935827358524
1012755331652
115456063508
12257b899804
1312837a802b
1489007a6a0
154e9c227d7
hex2f846ea44

12755331652 has 24 divisors (see below), whose sum is σ = 25582951296. Its totient is φ = 5451080448.

The previous prime is 12755331643. The next prime is 12755331653. The reversal of 12755331652 is 25613355721.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12755331653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 635368 + ... + 655135.

It is an arithmetic number, because the mean of its divisors is an integer number (1065956304).

Almost surely, 212755331652 is an apocalyptic number.

It is an amenable number.

12755331652 is an abundant number, since it is smaller than the sum of its proper divisors (12827619644).

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

12755331652 is a wasteful number, since it uses less digits than its factorization.

12755331652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290867 (or 1290865 counting only the distinct ones).

The product of its digits is 189000, while the sum is 40.

The spelling of 12755331652 in words is "twelve billion, seven hundred fifty-five million, three hundred thirty-one thousand, six hundred fifty-two".

Divisors: 1 2 4 7 14 28 353 706 1412 2471 4942 9884 1290503 2581006 5162012 9033521 18067042 36134084 455547559 911095118 1822190236 3188832913 6377665826 12755331652