Base | Representation |
---|---|
bin | 10111011000010100… |
… | …11001010001010011 |
3 | 1012101202221212012000 |
4 | 23230022121101103 |
5 | 201201313120030 |
6 | 5433310405043 |
7 | 623023640520 |
oct | 135412312123 |
9 | 35352855160 |
10 | 12552082515 |
11 | 5361361415 |
12 | 2523800783 |
13 | 1250653b7b |
14 | 871090147 |
15 | 4d6e75860 |
hex | 2ec299453 |
12552082515 has 128 divisors (see below), whose sum is σ = 27309312000. Its totient is φ = 5339271168.
The previous prime is 12552082513. The next prime is 12552082519. The reversal of 12552082515 is 51528025521.
12552082515 is a `hidden beast` number, since 1 + 2 + 5 + 520 + 82 + 51 + 5 = 666.
It is not a de Polignac number, because 12552082515 - 21 = 12552082513 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 12552082515.
It is not an unprimeable number, because it can be changed into a prime (12552082511) by changing a digit.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1425396 + ... + 1434174.
It is an arithmetic number, because the mean of its divisors is an integer number (213354000).
Almost surely, 212552082515 is an apocalyptic number.
12552082515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
12552082515 is an abundant number, since it is smaller than the sum of its proper divisors (14757229485).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12552082515 is a wasteful number, since it uses less digits than its factorization.
12552082515 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8906 (or 8900 counting only the distinct ones).
The product of its (nonzero) digits is 40000, while the sum is 36.
The spelling of 12552082515 in words is "twelve billion, five hundred fifty-two million, eighty-two thousand, five hundred fifteen".
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