Base | Representation |
---|---|
bin | 111001101111… |
… | …0010110111100 |
3 | 2002221220212202 |
4 | 1303132112330 |
5 | 30222132113 |
6 | 3000451032 |
7 | 515204243 |
oct | 163362674 |
9 | 62856782 |
10 | 30270908 |
11 | 160a5a88 |
12 | a179a78 |
13 | 636b3a5 |
14 | 403d95a |
15 | 29ce258 |
hex | 1cde5bc |
30270908 has 12 divisors (see below), whose sum is σ = 53106480. Its totient is φ = 15097632.
The previous prime is 30270901. The next prime is 30270913. The reversal of 30270908 is 80907203.
It is a super-2 number, since 2×302709082 = 1832655742288928, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30270901) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7616 + ... + 10887.
It is an arithmetic number, because the mean of its divisors is an integer number (4425540).
Almost surely, 230270908 is an apocalyptic number.
It is an amenable number.
30270908 is a deficient number, since it is larger than the sum of its proper divisors (22835572).
30270908 is a wasteful number, since it uses less digits than its factorization.
30270908 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18916 (or 18914 counting only the distinct ones).
The product of its (nonzero) digits is 3024, while the sum is 29.
The square root of 30270908 is about 5501.9003989531. The cubic root of 30270908 is about 311.6557538891.
The spelling of 30270908 in words is "thirty million, two hundred seventy thousand, nine hundred eight".
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