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13924147 = 29480143
BaseRepresentation
bin110101000111…
…011100110011
3222012102100011
4311013130303
512031033042
61214235351
7226232116
oct65073463
928172304
1013924147
117950466
1247b5b57
132b66a53
141bc657d
151350a17
hexd47733

13924147 has 4 divisors (see below), whose sum is σ = 14404320. Its totient is φ = 13443976.

The previous prime is 13924123. The next prime is 13924151. The reversal of 13924147 is 74142931.

13924147 is digitally balanced in base 3, 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, and also an emirpimes, since its reverse is a distinct semiprime: 74142931 = 372003863.

It is a cyclic number.

It is not a de Polignac number, because 13924147 - 27 = 13924019 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13924117) 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, 240043 + ... + 240100.

It is an arithmetic number, because the mean of its divisors is an integer number (3601080).

Almost surely, 213924147 is an apocalyptic number.

13924147 is a deficient number, since it is larger than the sum of its proper divisors (480173).

13924147 is an equidigital number, since it uses as much as digits as its factorization.

13924147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480172.

The product of its digits is 6048, while the sum is 31.

The square root of 13924147 is about 3731.5073361847. The cubic root of 13924147 is about 240.5781604899.

The spelling of 13924147 in words is "thirteen million, nine hundred twenty-four thousand, one hundred forty-seven".

Divisors: 1 29 480143 13924147