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15052889 = 28153569
BaseRepresentation
bin111001011011…
…000001011001
31001022202200102
4321123001121
512323143024
61254345145
7241642655
oct71330131
931282612
1015052889
118551505
12505b1b5
133170747
141ddba65
1514c51ae
hexe5b059

15052889 has 4 divisors (see below), whose sum is σ = 15106740. Its totient is φ = 14999040.

The previous prime is 15052859. The next prime is 15052907. The reversal of 15052889 is 98825051.

15052889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5442889 + 9610000 = 2333^2 + 3100^2 .

It is a cyclic number.

It is not a de Polignac number, because 15052889 - 212 = 15048793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15052859) 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, 26504 + ... + 27065.

It is an arithmetic number, because the mean of its divisors is an integer number (3776685).

Almost surely, 215052889 is an apocalyptic number.

It is an amenable number.

15052889 is a deficient number, since it is larger than the sum of its proper divisors (53851).

15052889 is an equidigital number, since it uses as much as digits as its factorization.

15052889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53850.

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 15052889 is about 3879.8052786190. The cubic root of 15052889 is about 246.9107240724.

The spelling of 15052889 in words is "fifteen million, fifty-two thousand, eight hundred eighty-nine".

Divisors: 1 281 53569 15052889