Base | Representation |
---|---|
bin | 10111011010110000… |
… | …10010100100101110 |
3 | 1012110012101021220000 |
4 | 23231120102210232 |
5 | 201222030033233 |
6 | 5435320205130 |
7 | 623362335465 |
oct | 135530224456 |
9 | 35405337800 |
10 | 12572502318 |
11 | 5371939092 |
12 | 252a6097a6 |
13 | 12549533ac |
14 | 873a879dc |
15 | 4d8b5ad13 |
hex | 2ed61292e |
12572502318 has 40 divisors (see below), whose sum is σ = 28858848480. Its totient is φ = 4088616480.
The previous prime is 12572502317. The next prime is 12572502329. The reversal of 12572502318 is 81320527521.
12572502318 is a `hidden beast` number, since 1 + 2 + 572 + 50 + 2 + 31 + 8 = 666.
12572502318 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×125725023182 (a number of 21 digits) contains 22 as substring.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12572502317) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 939798 + ... + 953081.
It is an arithmetic number, because the mean of its divisors is an integer number (721471212).
Almost surely, 212572502318 is an apocalyptic number.
12572502318 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
12572502318 is an abundant number, since it is smaller than the sum of its proper divisors (16286346162).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12572502318 is a wasteful number, since it uses less digits than its factorization.
12572502318 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1892934 (or 1892925 counting only the distinct ones).
The product of its (nonzero) digits is 33600, while the sum is 36.
The spelling of 12572502318 in words is "twelve billion, five hundred seventy-two million, five hundred two thousand, three hundred eighteen".
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