Base | Representation |
---|---|
bin | 1101110000100… |
… | …10110000001000 |
3 | 22001011221201001 |
4 | 12320102300020 |
5 | 214021421133 |
6 | 15241504344 |
7 | 2601024643 |
oct | 670226010 |
9 | 261157631 |
10 | 115420168 |
11 | 5a173976 |
12 | 327a20b4 |
13 | 1abb2476 |
14 | 11486a5a |
15 | a1ed87d |
hex | 6e12c08 |
115420168 has 32 divisors (see below), whose sum is σ = 223839000. Its totient is φ = 55752192.
The previous prime is 115420159. The next prime is 115420169. The reversal of 115420168 is 861024511.
It can be written as a sum of positive squares in 4 ways, for example, as 114875524 + 544644 = 10718^2 + 738^2 .
It is a super-2 number, since 2×1154201682 = 26643630362296448, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (115420169) 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, 42796 + ... + 45412.
Almost surely, 2115420168 is an apocalyptic number.
It is an amenable number.
115420168 is a deficient number, since it is larger than the sum of its proper divisors (108418832).
115420168 is a wasteful number, since it uses less digits than its factorization.
115420168 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2809 (or 2805 counting only the distinct ones).
The product of its (nonzero) digits is 1920, while the sum is 28.
The square root of 115420168 is about 10743.3778673190. The cubic root of 115420168 is about 486.8859406788.
Adding to 115420168 its reverse (861024511), we get a palindrome (976444679).
The spelling of 115420168 in words is "one hundred fifteen million, four hundred twenty thousand, one hundred sixty-eight".
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