Base | Representation |
---|---|
bin | 1011011000011110110000… |
… | …0011101110000010110100 |
3 | 1122022102220211000111012010 |
4 | 2312013230003232002310 |
5 | 3120022112213200002 |
6 | 42341223100524220 |
7 | 2431123216613340 |
oct | 266075403560264 |
9 | 48272824014163 |
10 | 12515200131252 |
11 | 3a95737226945 |
12 | 14a1643250670 |
13 | 6ca241988660 |
14 | 313a4b840620 |
15 | 16a8381eb46c |
hex | b61ec0ee0b4 |
12515200131252 has 192 divisors, whose sum is σ = 37251127907840. Its totient is φ = 3182039230464.
The previous prime is 12515200131229. The next prime is 12515200131263. The reversal of 12515200131252 is 25213100251521.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2983158 + ... + 5824914.
Almost surely, 212515200131252 is an apocalyptic number.
12515200131252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12515200131252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18625563953920).
12515200131252 is an abundant number, since it is smaller than the sum of its proper divisors (24735927776588).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12515200131252 is a wasteful number, since it uses less digits than its factorization.
12515200131252 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2841930 (or 2841928 counting only the distinct ones).
The product of its (nonzero) digits is 6000, while the sum is 30.
Adding to 12515200131252 its reverse (25213100251521), we get a palindrome (37728300382773).
The spelling of 12515200131252 in words is "twelve trillion, five hundred fifteen billion, two hundred million, one hundred thirty-one thousand, two hundred fifty-two".
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