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15052145407 = 131157857339
BaseRepresentation
bin11100000010010110…
…11000001011111111
31102212000021012201221
432001023120023333
5221311322123112
610525335414211
71042002060565
oct160113301377
942760235657
1015052145407
1164245a86a2
122b00b24367
13155b5a5b20
14a2b119a35
155d16b4e07
hex3812d82ff

15052145407 has 4 divisors (see below), whose sum is σ = 16210002760. Its totient is φ = 13894288056.

The previous prime is 15052145351. The next prime is 15052145467. The reversal of 15052145407 is 70454125051.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-15052145407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15052145467) 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, 578928657 + ... + 578928682.

It is an arithmetic number, because the mean of its divisors is an integer number (4052500690).

Almost surely, 215052145407 is an apocalyptic number.

15052145407 is a deficient number, since it is larger than the sum of its proper divisors (1157857353).

15052145407 is a wasteful number, since it uses less digits than its factorization.

15052145407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157857352.

The product of its (nonzero) digits is 28000, while the sum is 34.

The spelling of 15052145407 in words is "fifteen billion, fifty-two million, one hundred forty-five thousand, four hundred seven".

Divisors: 1 13 1157857339 15052145407