Base | Representation |
---|---|
bin | 111010000111… |
… | …1100111101101 |
3 | 2010100011122222 |
4 | 1310033213231 |
5 | 30300111220 |
6 | 3005045125 |
7 | 520004435 |
oct | 164174755 |
9 | 63304588 |
10 | 30472685 |
11 | 16223641 |
12 | a2567a5 |
13 | 640c199 |
14 | 40932c5 |
15 | 2a1de25 |
hex | 1d0f9ed |
30472685 has 8 divisors (see below), whose sum is σ = 37345536. Its totient is φ = 23859280.
The previous prime is 30472661. The next prime is 30472691. The reversal of 30472685 is 58627403.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-30472685 is a prime.
It is a super-2 number, since 2×304726852 = 1857169062218450, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64601 + ... + 65070.
It is an arithmetic number, because the mean of its divisors is an integer number (4668192).
Almost surely, 230472685 is an apocalyptic number.
It is an amenable number.
30472685 is a deficient number, since it is larger than the sum of its proper divisors (6872851).
30472685 is a wasteful number, since it uses less digits than its factorization.
30472685 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 129723.
The product of its (nonzero) digits is 40320, while the sum is 35.
The square root of 30472685 is about 5520.2069707575. The cubic root of 30472685 is about 312.3466895992.
The spelling of 30472685 in words is "thirty million, four hundred seventy-two thousand, six hundred eighty-five".
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