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12355016653 = 722937234989
BaseRepresentation
bin10111000000110101…
…01001011111001101
31011220001010212122101
423200122221133031
5200300341013103
65401550515101
7615111623500
oct134032513715
934801125571
1012355016653
1152700a2971
122489805a91
13121b886255
14852c33137
154c49eaa1d
hex2e06a97cd

12355016653 has 24 divisors (see below), whose sum is σ = 15269650200. Its totient is φ = 9948451968.

The previous prime is 12355016633. The next prime is 12355016659. The reversal of 12355016653 is 35661055321.

It can be written as a sum of positive squares in 4 ways, for example, as 5785427844 + 6569588809 = 76062^2 + 81053^2 .

It is not a de Polignac number, because 12355016653 - 225 = 12321462221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12355016659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64918 + ... + 170071.

It is an arithmetic number, because the mean of its divisors is an integer number (636235425).

Almost surely, 212355016653 is an apocalyptic number.

It is an amenable number.

12355016653 is a deficient number, since it is larger than the sum of its proper divisors (2914633547).

12355016653 is a wasteful number, since it uses less digits than its factorization.

12355016653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235069 (or 235062 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 37.

The spelling of 12355016653 in words is "twelve billion, three hundred fifty-five million, sixteen thousand, six hundred fifty-three".

Divisors: 1 7 29 37 49 203 259 1073 1421 1813 7511 52577 234989 1644923 6814681 8694593 11514461 47702767 60862151 252143197 333919369 426035057 1765002379 12355016653