Base | Representation |
---|---|
bin | 111010111111… |
… | …1010111110001 |
3 | 2011012102120000 |
4 | 1311333113301 |
5 | 30404233132 |
6 | 3022540213 |
7 | 523622100 |
oct | 165772761 |
9 | 64172500 |
10 | 30930417 |
11 | 16506531 |
12 | a437669 |
13 | 653c62b |
14 | 4172037 |
15 | 2aae87c |
hex | 1d7f5f1 |
30930417 has 30 divisors (see below), whose sum is σ = 53755218. Its totient is φ = 17672256.
The previous prime is 30930397. The next prime is 30930433. The reversal of 30930417 is 71403903.
It can be written as a sum of positive squares in only one way, i.e., 30735936 + 194481 = 5544^2 + 441^2 .
It is not a de Polignac number, because 30930417 - 211 = 30928369 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30930457) by changing a digit.
It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 73 + ... + 7865.
Almost surely, 230930417 is an apocalyptic number.
It is an amenable number.
30930417 is a deficient number, since it is larger than the sum of its proper divisors (22824801).
30930417 is an equidigital number, since it uses as much as digits as its factorization.
30930417 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7819 (or 7803 counting only the distinct ones).
The product of its (nonzero) digits is 2268, while the sum is 27.
The square root of 30930417 is about 5561.5121145243. The cubic root of 30930417 is about 313.9028497104.
The spelling of 30930417 in words is "thirty million, nine hundred thirty thousand, four hundred seventeen".
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