Base | Representation |
---|---|
bin | 1101101110011… |
… | …10011100110010 |
3 | 22000122201221100 |
4 | 12313032130302 |
5 | 213433443102 |
6 | 15231505230 |
7 | 2565451206 |
oct | 667163462 |
9 | 260581840 |
10 | 115140402 |
11 | 59aa2763 |
12 | 32688216 |
13 | 1ab15020 |
14 | 11412b06 |
15 | a195a1c |
hex | 6dce732 |
115140402 has 24 divisors (see below), whose sum is σ = 268661484. Its totient is φ = 35427744.
The previous prime is 115140391. The next prime is 115140409. The reversal of 115140402 is 204041511.
It can be written as a sum of positive squares in 2 ways, for example, as 84437721 + 30702681 = 9189^2 + 5541^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (115140409) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 245793 + ... + 246260.
Almost surely, 2115140402 is an apocalyptic number.
115140402 is an abundant number, since it is smaller than the sum of its proper divisors (153521082).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
115140402 is a wasteful number, since it uses less digits than its factorization.
115140402 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 492074 (or 492071 counting only the distinct ones).
The product of its (nonzero) digits is 160, while the sum is 18.
The square root of 115140402 is about 10730.3495749207. The cubic root of 115140402 is about 486.4922361267.
Adding to 115140402 its reverse (204041511), we get a palindrome (319181913).
The spelling of 115140402 in words is "one hundred fifteen million, one hundred forty thousand, four hundred two".
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