Base | Representation |
---|---|
bin | 111010110000… |
… | …0001001010000 |
3 | 2010221221002210 |
4 | 1311200021100 |
5 | 30341140022 |
6 | 3020112120 |
7 | 522550146 |
oct | 165401120 |
9 | 63857083 |
10 | 30802512 |
11 | 16429424 |
12 | a395640 |
13 | 64c6350 |
14 | 413b596 |
15 | 2a86a0c |
hex | 1d60250 |
30802512 has 40 divisors (see below), whose sum is σ = 85695904. Its totient is φ = 9477504.
The previous prime is 30802511. The next prime is 30802547. The reversal of 30802512 is 21520803.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30802511) 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, 24058 + ... + 25305.
Almost surely, 230802512 is an apocalyptic number.
It is an amenable number.
30802512 is an abundant number, since it is smaller than the sum of its proper divisors (54893392).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30802512 is a wasteful number, since it uses less digits than its factorization.
30802512 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 49387 (or 49381 counting only the distinct ones).
The product of its (nonzero) digits is 480, while the sum is 21.
The square root of 30802512 is about 5550.0010810810. The cubic root of 30802512 is about 313.4695630145.
The spelling of 30802512 in words is "thirty million, eight hundred two thousand, five hundred twelve".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •