Base | Representation |
---|---|
bin | 111001110010… |
… | …1011001111001 |
3 | 2010000101110200 |
4 | 1303211121321 |
5 | 30224043034 |
6 | 3001232413 |
7 | 515354343 |
oct | 163453171 |
9 | 63011420 |
10 | 30299769 |
11 | 16115735 |
12 | a192709 |
13 | 637b576 |
14 | 404a293 |
15 | 29d7a99 |
hex | 1ce5679 |
30299769 has 12 divisors (see below), whose sum is σ = 43825236. Its totient is φ = 20172672.
The previous prime is 30299767. The next prime is 30299807. The reversal of 30299769 is 96799203.
It can be written as a sum of positive squares in 2 ways, for example, as 4928400 + 25371369 = 2220^2 + 5037^2 .
It is not a de Polignac number, because 30299769 - 21 = 30299767 is a prime.
It is a super-2 number, since 2×302997692 = 1836152002906722, which contains 22 as substring.
It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.
It is not an unprimeable number, because it can be changed into a prime (30299761) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6637 + ... + 10229.
It is an arithmetic number, because the mean of its divisors is an integer number (3652103).
Almost surely, 230299769 is an apocalyptic number.
It is an amenable number.
30299769 is a deficient number, since it is larger than the sum of its proper divisors (13525467).
30299769 is a wasteful number, since it uses less digits than its factorization.
30299769 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4536 (or 4533 counting only the distinct ones).
The product of its (nonzero) digits is 183708, while the sum is 45.
The square root of 30299769 is about 5504.5225951030. The cubic root of 30299769 is about 311.7547690849.
The spelling of 30299769 in words is "thirty million, two hundred ninety-nine thousand, seven hundred sixty-nine".
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