Base | Representation |
---|---|
bin | 111010111000… |
… | …1101111001000 |
3 | 2011002120221112 |
4 | 1311301233020 |
5 | 30400441233 |
6 | 3021425452 |
7 | 523300214 |
oct | 165615710 |
9 | 64076845 |
10 | 30874568 |
11 | 1647857a |
12 | a40b288 |
13 | 652009a |
14 | 4159944 |
15 | 2a9d048 |
hex | 1d71bc8 |
30874568 has 8 divisors (see below), whose sum is σ = 57889830. Its totient is φ = 15437280.
The previous prime is 30874561. The next prime is 30874583. The reversal of 30874568 is 86547803.
It is a happy number.
It can be written as a sum of positive squares in only one way, i.e., 16144324 + 14730244 = 4018^2 + 3838^2 .
It is a tau number, because it is divible by the number of its divisors (8).
It is not an unprimeable number, because it can be changed into a prime (30874561) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1929653 + ... + 1929668.
Almost surely, 230874568 is an apocalyptic number.
It is an amenable number.
30874568 is a deficient number, since it is larger than the sum of its proper divisors (27015262).
30874568 is a wasteful number, since it uses less digits than its factorization.
30874568 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3859327 (or 3859323 counting only the distinct ones).
The product of its (nonzero) digits is 161280, while the sum is 41.
The square root of 30874568 is about 5556.4888193895. The cubic root of 30874568 is about 313.7138047059.
The spelling of 30874568 in words is "thirty million, eight hundred seventy-four thousand, five hundred sixty-eight".
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