Base | Representation |
---|---|
bin | 111010100011… |
… | …0001011011110 |
3 | 2010202112012202 |
4 | 1311012023132 |
5 | 30324234113 |
6 | 3013531502 |
7 | 521625113 |
oct | 165061336 |
9 | 63675182 |
10 | 30696158 |
11 | 16366529 |
12 | a343b92 |
13 | 6489b0c |
14 | 411090a |
15 | 2a65258 |
hex | 1d462de |
30696158 has 4 divisors (see below), whose sum is σ = 46044240. Its totient is φ = 15348078.
The previous prime is 30696157. The next prime is 30696187. The reversal of 30696158 is 85169603.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85169603 = 61 ⋅1396223.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30696151) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7674038 + ... + 7674041.
It is an arithmetic number, because the mean of its divisors is an integer number (11511060).
Almost surely, 230696158 is an apocalyptic number.
30696158 is a deficient number, since it is larger than the sum of its proper divisors (15348082).
30696158 is a wasteful number, since it uses less digits than its factorization.
30696158 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15348081.
The product of its (nonzero) digits is 38880, while the sum is 38.
The square root of 30696158 is about 5540.4113565691. The cubic root of 30696158 is about 313.1083675161.
The spelling of 30696158 in words is "thirty million, six hundred ninety-six thousand, one hundred fifty-eight".
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