Base | Representation |
---|---|
bin | 111001111100… |
… | …1001010000111 |
3 | 2010011111110100 |
4 | 1303321022013 |
5 | 30234140204 |
6 | 3003055143 |
7 | 516142260 |
oct | 163711207 |
9 | 63144410 |
10 | 30380679 |
11 | 161704aa |
12 | a2114b3 |
13 | 63a9344 |
14 | 406b967 |
15 | 2a01a39 |
hex | 1cf9287 |
30380679 has 12 divisors (see below), whose sum is σ = 50152336. Its totient is φ = 17360352.
The previous prime is 30380641. The next prime is 30380689. The reversal of 30380679 is 97608303.
It is not a de Polignac number, because 30380679 - 27 = 30380551 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30380689) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241054 + ... + 241179.
Almost surely, 230380679 is an apocalyptic number.
30380679 is a deficient number, since it is larger than the sum of its proper divisors (19771657).
30380679 is a wasteful number, since it uses less digits than its factorization.
30380679 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 482246 (or 482243 counting only the distinct ones).
The product of its (nonzero) digits is 27216, while the sum is 36.
The square root of 30380679 is about 5511.8671065257. The cubic root of 30380679 is about 312.0320171778.
The spelling of 30380679 in words is "thirty million, three hundred eighty thousand, six hundred seventy-nine".
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