Base | Representation |
---|---|
bin | 111010100000… |
… | …1011000111100 |
3 | 2010201112022011 |
4 | 1311001120330 |
5 | 30323122130 |
6 | 3013301004 |
7 | 521513656 |
oct | 165013074 |
9 | 63645264 |
10 | 30676540 |
11 | 16352814 |
12 | a334764 |
13 | 6480bcb |
14 | 41076d6 |
15 | 2a5e52a |
hex | 1d4163c |
30676540 has 24 divisors (see below), whose sum is σ = 64602720. Its totient is φ = 12235968.
The previous prime is 30676537. The next prime is 30676543. The reversal of 30676540 is 4567603.
It is an interprime number because it is at equal distance from previous prime (30676537) and next prime (30676543).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30676543) 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, 5809 + ... + 9751.
It is an arithmetic number, because the mean of its divisors is an integer number (2691780).
Almost surely, 230676540 is an apocalyptic number.
It is an amenable number.
30676540 is an abundant number, since it is smaller than the sum of its proper divisors (33926180).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30676540 is a wasteful number, since it uses less digits than its factorization.
30676540 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4341 (or 4339 counting only the distinct ones).
The product of its (nonzero) digits is 15120, while the sum is 31.
The square root of 30676540 is about 5538.6406274464. The cubic root of 30676540 is about 313.0416504914.
The spelling of 30676540 in words is "thirty million, six hundred seventy-six thousand, five hundred forty".
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