Base | Representation |
---|---|
bin | 111001100000… |
… | …1100100100111 |
3 | 2002201221010202 |
4 | 1303001210213 |
5 | 30204343444 |
6 | 2554141115 |
7 | 514203422 |
oct | 163014447 |
9 | 62657122 |
10 | 30152999 |
11 | 16025438 |
12 | a12179b |
13 | 6329816 |
14 | 400c9b9 |
15 | 29a934e |
hex | 1cc1927 |
30152999 has 4 divisors (see below), whose sum is σ = 30888480. Its totient is φ = 29417520.
The previous prime is 30152989. The next prime is 30153037. The reversal of 30152999 is 99925103.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99925103 = 5099 ⋅19597.
It is a cyclic number.
It is not a de Polignac number, because 30152999 - 212 = 30148903 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30152909) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367679 + ... + 367760.
It is an arithmetic number, because the mean of its divisors is an integer number (7722120).
Almost surely, 230152999 is an apocalyptic number.
30152999 is a deficient number, since it is larger than the sum of its proper divisors (735481).
30152999 is an equidigital number, since it uses as much as digits as its factorization.
30152999 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 735480.
The product of its (nonzero) digits is 21870, while the sum is 38.
The square root of 30152999 is about 5491.1746466489. The cubic root of 30152999 is about 311.2505812261.
The spelling of 30152999 in words is "thirty million, one hundred fifty-two thousand, nine hundred ninety-nine".
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