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13112302302 = 2331138956747
BaseRepresentation
bin11000011011000110…
…11101101011011110
31020211211002222021000
430031203131223132
5203323222133202
610005042051130
7642635505411
oct141543355336
936754088230
1013112302302
115619609880
12265b349aa6
13130c731c78
148c563db78
1551b23691c
hex30d8ddade

13112302302 has 64 divisors (see below), whose sum is σ = 31869676800. Its totient is φ = 3963140640.

The previous prime is 13112302297. The next prime is 13112302303. The reversal of 13112302302 is 20320321131.

13112302302 is a `hidden beast` number, since 131 + 1 + 230 + 2 + 302 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13112302303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202693 + ... + 259439.

It is an arithmetic number, because the mean of its divisors is an integer number (497963700).

Almost surely, 213112302302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13112302302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15934838400).

13112302302 is an abundant number, since it is smaller than the sum of its proper divisors (18757374498).

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

13112302302 is a wasteful number, since it uses less digits than its factorization.

13112302302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57158 (or 57152 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13112302302 its reverse (20320321131), we get a palindrome (33432623433).

The spelling of 13112302302 in words is "thirteen billion, one hundred twelve million, three hundred two thousand, three hundred two".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 99 198 297 389 594 778 1167 2334 3501 4279 7002 8558 10503 12837 21006 25674 38511 56747 77022 113494 115533 170241 231066 340482 510723 624217 1021446 1248434 1532169 1872651 3064338 3745302 5617953 11235906 16853859 22074583 33707718 44149166 66223749 132447498 198671247 242820413 397342494 485640826 596013741 728461239 1192027482 1456922478 2185383717 4370767434 6556151151 13112302302