Base | Representation |
---|---|
bin | 111001101001… |
… | …111110011011 |
3 | 1001102212200221 |
4 | 321221332123 |
5 | 12332123024 |
6 | 1255540511 |
7 | 242316355 |
oct | 71517633 |
9 | 31385627 |
10 | 15114139 |
11 | 8593527 |
12 | 508a737 |
13 | 31925a1 |
14 | 20160d5 |
15 | 14d83e4 |
hex | e69f9b |
15114139 has 16 divisors (see below), whose sum is σ = 17102880. Its totient is φ = 13271040.
The previous prime is 15114137. The next prime is 15114163. The reversal of 15114139 is 93141151.
It is a cyclic number.
It is not a de Polignac number, because 15114139 - 21 = 15114137 is a prime.
It is a super-2 number, since 2×151141392 = 456874395422642, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (15114131) 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, 23259 + ... + 23899.
It is an arithmetic number, because the mean of its divisors is an integer number (1068930).
Almost surely, 215114139 is an apocalyptic number.
15114139 is a gapful number since it is divisible by the number (19) formed by its first and last digit.
15114139 is a deficient number, since it is larger than the sum of its proper divisors (1988741).
15114139 is a wasteful number, since it uses less digits than its factorization.
15114139 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 750.
The product of its digits is 540, while the sum is 25.
The square root of 15114139 is about 3887.6907027180. The cubic root of 15114139 is about 247.2451629953.
The spelling of 15114139 in words is "fifteen million, one hundred fourteen thousand, one hundred thirty-nine".
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