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15055423 = 20897207
BaseRepresentation
bin111001011011…
…101000111111
31001022220011021
4321123220333
512323233143
61254405011
7241653235
oct71335077
931286137
1015055423
1185533a9
125060767
133171946
141ddc955
1514c5ced
hexe5ba3f

15055423 has 4 divisors (see below), whose sum is σ = 15064720. Its totient is φ = 15046128.

The previous prime is 15055393. The next prime is 15055427. The reversal of 15055423 is 32455051.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 32455051 = 47690533.

It is a cyclic number.

It is not a de Polignac number, because 15055423 - 213 = 15047231 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 (15055427) 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, 1515 + ... + 5692.

It is an arithmetic number, because the mean of its divisors is an integer number (3766180).

Almost surely, 215055423 is an apocalyptic number.

15055423 is a deficient number, since it is larger than the sum of its proper divisors (9297).

15055423 is an equidigital number, since it uses as much as digits as its factorization.

15055423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9296.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 15055423 is about 3880.1318276574. The cubic root of 15055423 is about 246.9245782606.

The spelling of 15055423 in words is "fifteen million, fifty-five thousand, four hundred twenty-three".

Divisors: 1 2089 7207 15055423