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15025054139 = 52328728593
BaseRepresentation
bin11011111111001000…
…00010000110111011
31102210010021211111122
431333210002012323
5221232403213024
610522531015455
71041222565364
oct157744020673
942703254448
1015025054139
116410284617
122ab3a3a58b
131555aabaa4
14a276a6b6b
155ce112d5e
hex37f9021bb

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 = 158875862973.

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".

Divisors: 1 523 28728593 15025054139