Base | Representation |
---|---|
bin | 110010101010… |
… | …000010101111 |
3 | 220222122220220 |
4 | 302222002233 |
5 | 11344420112 |
6 | 1152342423 |
7 | 220605321 |
oct | 62520257 |
9 | 26878826 |
10 | 13279407 |
11 | 7550019 |
12 | 4544a13 |
13 | 299c44b |
14 | 1a99611 |
15 | 127498c |
hex | caa0af |
13279407 has 8 divisors (see below), whose sum is σ = 17736960. Its totient is φ = 8837400.
The previous prime is 13279403. The next prime is 13279429. The reversal of 13279407 is 70497231.
13279407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 13279407 - 22 = 13279403 is a prime.
It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13279403) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1719 + ... + 5432.
It is an arithmetic number, because the mean of its divisors is an integer number (2217120).
Almost surely, 213279407 is an apocalyptic number.
13279407 is a deficient number, since it is larger than the sum of its proper divisors (4457553).
13279407 is an equidigital number, since it uses as much as digits as its factorization.
13279407 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7773.
The product of its (nonzero) digits is 10584, while the sum is 33.
The square root of 13279407 is about 3644.0920679917. The cubic root of 13279407 is about 236.8061046541.
The spelling of 13279407 in words is "thirteen million, two hundred seventy-nine thousand, four hundred seven".
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