Base | Representation |
---|---|
bin | 101111010101… |
… | …000101111001 |
3 | 212100100102111 |
4 | 233111011321 |
5 | 11134012121 |
6 | 1121532321 |
7 | 210313324 |
oct | 57250571 |
9 | 25310374 |
10 | 12407161 |
11 | 7004758 |
12 | 41a40a1 |
13 | 2755420 |
14 | 190d7bb |
15 | 11512e1 |
hex | bd5179 |
12407161 has 16 divisors (see below), whose sum is σ = 14611968. Its totient is φ = 10425600.
The previous prime is 12407159. The next prime is 12407191. The reversal of 12407161 is 16170421.
It is a cyclic number.
It is not a de Polignac number, because 12407161 - 21 = 12407159 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12407111) 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, 5946 + ... + 7756.
It is an arithmetic number, because the mean of its divisors is an integer number (913248).
Almost surely, 212407161 is an apocalyptic number.
It is an amenable number.
12407161 is a deficient number, since it is larger than the sum of its proper divisors (2204807).
12407161 is a wasteful number, since it uses less digits than its factorization.
12407161 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1872.
The product of its (nonzero) digits is 336, while the sum is 22.
The square root of 12407161 is about 3522.3800192483. The cubic root of 12407161 is about 231.5034527176.
Adding to 12407161 its reverse (16170421), we get a palindrome (28577582).
The spelling of 12407161 in words is "twelve million, four hundred seven thousand, one hundred sixty-one".
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