Base | Representation |
---|---|
bin | 111001111101… |
… | …1101101000011 |
3 | 2010012000202120 |
4 | 1303323231003 |
5 | 30240003412 |
6 | 3003215323 |
7 | 516214545 |
oct | 163735503 |
9 | 63160676 |
10 | 30391107 |
11 | 1617831a |
12 | a217543 |
13 | 63b1006 |
14 | 4071695 |
15 | 2a04b8c |
hex | 1cfbb43 |
30391107 has 8 divisors (see below), whose sum is σ = 40650576. Its totient is φ = 20196192.
The previous prime is 30391091. The next prime is 30391111. The reversal of 30391107 is 70119303.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30391107 - 24 = 30391091 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30391117) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15028 + ... + 16929.
It is an arithmetic number, because the mean of its divisors is an integer number (5081322).
Almost surely, 230391107 is an apocalyptic number.
30391107 is a deficient number, since it is larger than the sum of its proper divisors (10259469).
30391107 is a wasteful number, since it uses less digits than its factorization.
30391107 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32277.
The product of its (nonzero) digits is 567, while the sum is 24.
The square root of 30391107 is about 5512.8129843121. The cubic root of 30391107 is about 312.0677141818.
The spelling of 30391107 in words is "thirty million, three hundred ninety-one thousand, one hundred seven".
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