Base | Representation |
---|---|
bin | 11011111111001000… |
… | …00010000110111011 |
3 | 1102210010021211111122 |
4 | 31333210002012323 |
5 | 221232403213024 |
6 | 10522531015455 |
7 | 1041222565364 |
oct | 157744020673 |
9 | 42703254448 |
10 | 15025054139 |
11 | 6410284617 |
12 | 2ab3a3a58b |
13 | 1555aabaa4 |
14 | a276a6b6b |
15 | 5ce112d5e |
hex | 37f9021bb |
15025054139 has 4 divisors (see below), whose sum is σ = 15053783256. Its totient is φ = 14996325024.
The previous prime is 15025054133. The next prime is 15025054147. The reversal of 15025054139 is 93145052051.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93145052051 = 15887 ⋅5862973.
It is a cyclic number.
It is not a de Polignac number, because 15025054139 - 24 = 15025054123 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 15025054099 and 15025054108.
It is not an unprimeable number, because it can be changed into a prime (15025054133) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14363774 + ... + 14364819.
It is an arithmetic number, because the mean of its divisors is an integer number (3763445814).
Almost surely, 215025054139 is an apocalyptic number.
15025054139 is a deficient number, since it is larger than the sum of its proper divisors (28729117).
15025054139 is an equidigital number, since it uses as much as digits as its factorization.
15025054139 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 28729116.
The product of its (nonzero) digits is 27000, while the sum is 35.
The spelling of 15025054139 in words is "fifteen billion, twenty-five million, fifty-four thousand, one hundred thirty-nine".
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