Base | Representation |
---|---|
bin | 111010110001… |
… | …1000100010101 |
3 | 2010222112112020 |
4 | 1311203010111 |
5 | 30342030420 |
6 | 3020243353 |
7 | 522630102 |
oct | 165430425 |
9 | 63875466 |
10 | 30814485 |
11 | 16437419 |
12 | a3a0559 |
13 | 64cb930 |
14 | 4141aa9 |
15 | 2a8a340 |
hex | 1d63115 |
30814485 has 32 divisors (see below), whose sum is σ = 55896960. Its totient is φ = 14370048.
The previous prime is 30814481. The next prime is 30814499. The reversal of 30814485 is 58441803.
It is not a de Polignac number, because 30814485 - 22 = 30814481 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30814481) 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, 454 + ... + 7863.
It is an arithmetic number, because the mean of its divisors is an integer number (1746780).
Almost surely, 230814485 is an apocalyptic number.
It is an amenable number.
30814485 is a deficient number, since it is larger than the sum of its proper divisors (25082475).
30814485 is a wasteful number, since it uses less digits than its factorization.
30814485 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8357.
The product of its (nonzero) digits is 15360, while the sum is 33.
The square root of 30814485 is about 5551.0796247217. The cubic root of 30814485 is about 313.5101731753.
The spelling of 30814485 in words is "thirty million, eight hundred fourteen thousand, four hundred eighty-five".
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