Base | Representation |
---|---|
bin | 10010100110011… |
… | …111011100101001 |
3 | 210202020022111210 |
4 | 102212133130221 |
5 | 1114343031134 |
6 | 50544543333 |
7 | 10506431502 |
oct | 2246373451 |
9 | 722208453 |
10 | 312080169 |
11 | 1501854a5 |
12 | 88621b49 |
13 | 4c86a42b |
14 | 2d639ba9 |
15 | 1c5e82e9 |
hex | 1299f729 |
312080169 has 16 divisors (see below), whose sum is σ = 459741312. Its totient is φ = 187300608.
The previous prime is 312080161. The next prime is 312080177. The reversal of 312080169 is 961080213.
It is an interprime number because it is at equal distance from previous prime (312080161) and next prime (312080177).
It is not a de Polignac number, because 312080169 - 23 = 312080161 is a prime.
It is a super-2 number, since 2×3120801692 = 194788063766137122, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (312080161) 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, 131854 + ... + 134199.
It is an arithmetic number, because the mean of its divisors is an integer number (28733832).
Almost surely, 2312080169 is an apocalyptic number.
It is an amenable number.
312080169 is a deficient number, since it is larger than the sum of its proper divisors (147661143).
312080169 is a wasteful number, since it uses less digits than its factorization.
312080169 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 266096.
The product of its (nonzero) digits is 2592, while the sum is 30.
The square root of 312080169 is about 17665.7909248355. The cubic root of 312080169 is about 678.3003755147.
The spelling of 312080169 in words is "three hundred twelve million, eighty thousand, one hundred sixty-nine".
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