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12152311340 = 22513308915131
BaseRepresentation
bin10110101000101010…
…11000111000101100
31011100220201101020012
423110111120320230
5144341442430330
65325510112352
7610100641061
oct132425307054
934326641205
1012152311340
115176732414
12243194b6b8
1311b8892790
14833d48c68
154b1d09c95
hex2d4558e2c

12152311340 has 48 divisors (see below), whose sum is σ = 27493633440. Its totient is φ = 4485258240.

The previous prime is 12152311337. The next prime is 12152311343. The reversal of 12152311340 is 4311325121.

It is an interprime number because it is at equal distance from previous prime (12152311337) and next prime (12152311343).

It is not an unprimeable number, because it can be changed into a prime (12152311343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 795575 + ... + 810705.

It is an arithmetic number, because the mean of its divisors is an integer number (572784030).

Almost surely, 212152311340 is an apocalyptic number.

12152311340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12152311340 is an abundant number, since it is smaller than the sum of its proper divisors (15341322100).

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

12152311340 is a wasteful number, since it uses less digits than its factorization.

12152311340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18242 (or 18240 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 12152311340 its reverse (4311325121), we get a palindrome (16463636461).

The spelling of 12152311340 in words is "twelve billion, one hundred fifty-two million, three hundred eleven thousand, three hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 3089 6178 12356 15131 15445 30262 30890 40157 60524 61780 75655 80314 151310 160628 196703 200785 302620 393406 401570 786812 803140 983515 1967030 3934060 46739659 93479318 186958636 233698295 467396590 607615567 934793180 1215231134 2430462268 3038077835 6076155670 12152311340