Base | Representation |
---|---|
bin | 111010000011… |
… | …1101001000111 |
3 | 2010021111211200 |
4 | 1310013221013 |
5 | 30243040012 |
6 | 3004233543 |
7 | 516510243 |
oct | 164075107 |
9 | 63244750 |
10 | 30440007 |
11 | 16201034 |
12 | a23b8b3 |
13 | 63ca350 |
14 | 4085423 |
15 | 2a143dc |
hex | 1d07a47 |
30440007 has 12 divisors (see below), whose sum is σ = 47351304. Its totient is φ = 18732240.
The previous prime is 30439993. The next prime is 30440009. The reversal of 30440007 is 70004403.
It is not a de Polignac number, because 30440007 - 26 = 30439943 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30440009) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129969 + ... + 130202.
It is an arithmetic number, because the mean of its divisors is an integer number (3945942).
Almost surely, 230440007 is an apocalyptic number.
30440007 is a deficient number, since it is larger than the sum of its proper divisors (16911297).
30440007 is a wasteful number, since it uses less digits than its factorization.
30440007 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 260190 (or 260187 counting only the distinct ones).
The product of its (nonzero) digits is 336, while the sum is 18.
The square root of 30440007 is about 5517.2463240280. The cubic root of 30440007 is about 312.2349992356.
The spelling of 30440007 in words is "thirty million, four hundred forty thousand, seven".
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