Base | Representation |
---|---|
bin | 111010101001… |
… | …1111101001101 |
3 | 2010212101121210 |
4 | 1311103331031 |
5 | 30333040324 |
6 | 3015045033 |
7 | 522251460 |
oct | 165237515 |
9 | 63771553 |
10 | 30752589 |
11 | 163a496a |
12 | a370779 |
13 | 64a96ca |
14 | 41272d7 |
15 | 2a76d29 |
hex | 1d53f4d |
30752589 has 32 divisors (see below), whose sum is σ = 48971776. Its totient is φ = 16796160.
The previous prime is 30752551. The next prime is 30752593. The reversal of 30752589 is 98525703.
It is not a de Polignac number, because 30752589 - 28 = 30752333 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30752599) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62904 + ... + 63390.
It is an arithmetic number, because the mean of its divisors is an integer number (1530368).
Almost surely, 230752589 is an apocalyptic number.
It is an amenable number.
30752589 is a deficient number, since it is larger than the sum of its proper divisors (18219187).
30752589 is a wasteful number, since it uses less digits than its factorization.
30752589 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 625.
The product of its (nonzero) digits is 75600, while the sum is 39.
The square root of 30752589 is about 5545.5016905597. The cubic root of 30752589 is about 313.3001200900.
The spelling of 30752589 in words is "thirty million, seven hundred fifty-two thousand, five hundred eighty-nine".
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