Base | Representation |
---|---|
bin | 110010101001… |
… | …111110111001 |
3 | 220222122120210 |
4 | 302221332321 |
5 | 11344413121 |
6 | 1152341333 |
7 | 220604520 |
oct | 62517671 |
9 | 26878523 |
10 | 13279161 |
11 | 754a915 |
12 | 4544849 |
13 | 299c2bc |
14 | 1a994b7 |
15 | 1274876 |
hex | ca9fb9 |
13279161 has 16 divisors (see below), whose sum is σ = 20301824. Its totient is φ = 7563024.
The previous prime is 13279153. The next prime is 13279163. The reversal of 13279161 is 16197231.
It is not a de Polignac number, because 13279161 - 23 = 13279153 is a prime.
It is a super-2 number, since 2×132791612 = 352672233727842, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13279163) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6846 + ... + 8568.
It is an arithmetic number, because the mean of its divisors is an integer number (1268864).
Almost surely, 213279161 is an apocalyptic number.
It is an amenable number.
13279161 is a deficient number, since it is larger than the sum of its proper divisors (7022663).
13279161 is a wasteful number, since it uses less digits than its factorization.
13279161 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2100.
The product of its digits is 2268, while the sum is 30.
The square root of 13279161 is about 3644.0583145718. The cubic root of 13279161 is about 236.8046423735.
The spelling of 13279161 in words is "thirteen million, two hundred seventy-nine thousand, one hundred sixty-one".
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