Base | Representation |
---|---|
bin | 10111010011110101… |
… | …10111110100001001 |
3 | 1012022011011101021101 |
4 | 23221322313310021 |
5 | 201112200141024 |
6 | 5425444141401 |
7 | 622056100612 |
oct | 135172676411 |
9 | 35264141241 |
10 | 12514458889 |
11 | 53420a4209 |
12 | 2513097861 |
13 | 124590cb7a |
14 | 86a098c09 |
15 | 4d39e2c44 |
hex | 2e9eb7d09 |
12514458889 has 4 divisors (see below), whose sum is σ = 13173114640. Its totient is φ = 11855803140.
The previous prime is 12514458883. The next prime is 12514458899. The reversal of 12514458889 is 98885441521.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 12514458889 - 211 = 12514456841 is a prime.
It is a super-2 number, since 2×125144588892 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12514458883) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329327847 + ... + 329327884.
It is an arithmetic number, because the mean of its divisors is an integer number (3293278660).
Almost surely, 212514458889 is an apocalyptic number.
12514458889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.
It is an amenable number.
12514458889 is a deficient number, since it is larger than the sum of its proper divisors (658655751).
12514458889 is an equidigital number, since it uses as much as digits as its factorization.
12514458889 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 658655750.
The product of its digits is 3686400, while the sum is 55.
The spelling of 12514458889 in words is "twelve billion, five hundred fourteen million, four hundred fifty-eight thousand, eight hundred eighty-nine".
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