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13112302340 = 2257371912491
BaseRepresentation
bin11000011011000110…
…11101101100000100
31020211211002222022102
430031203131230010
5203323222133330
610005042051232
7642635505464
oct141543355404
936754088272
1013112302340
115619609905
12265b349b18
13130c731ca7
148c563dba4
1551b236945
hex30d8ddb04

13112302340 has 48 divisors (see below), whose sum is σ = 27954097920. Its totient is φ = 5165464320.

The previous prime is 13112302331. The next prime is 13112302361. The reversal of 13112302340 is 4320321131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1043495 + ... + 1055985.

It is an arithmetic number, because the mean of its divisors is an integer number (582377040).

Almost surely, 213112302340 is an apocalyptic number.

13112302340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13112302340 is an abundant number, since it is smaller than the sum of its proper divisors (14841795580).

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

13112302340 is a wasteful number, since it uses less digits than its factorization.

13112302340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13292 (or 13290 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13112302340 its reverse (4320321131), we get a palindrome (17432623471).

The spelling of 13112302340 in words is "thirteen billion, one hundred twelve million, three hundred two thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 73 146 292 365 719 730 1438 1460 2876 3595 7190 12491 14380 24982 49964 52487 62455 104974 124910 209948 249820 262435 524870 911843 1049740 1823686 3647372 4559215 8981029 9118430 17962058 18236860 35924116 44905145 89810290 179620580 655615117 1311230234 2622460468 3278075585 6556151170 13112302340