Base | Representation |
---|---|
bin | 111001011000… |
… | …0110010100101 |
3 | 2002121102211220 |
4 | 1302300302211 |
5 | 30200144021 |
6 | 2552450553 |
7 | 513466134 |
oct | 162606245 |
9 | 62542756 |
10 | 30084261 |
11 | 15a88829 |
12 | a0a9a59 |
13 | 630444c |
14 | 3dd191b |
15 | 2993cc6 |
hex | 1cb0ca5 |
30084261 has 16 divisors (see below), whose sum is σ = 40674816. Its totient is φ = 19777536.
The previous prime is 30084233. The next prime is 30084269. The reversal of 30084261 is 16248003.
It is a happy number.
It is a de Polignac number, because none of the positive numbers 2k-30084261 is a prime.
It is a super-2 number, since 2×300842612 = 1810125519832242, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30084269) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129001 + ... + 129233.
It is an arithmetic number, because the mean of its divisors is an integer number (2542176).
Almost surely, 230084261 is an apocalyptic number.
It is an amenable number.
30084261 is a deficient number, since it is larger than the sum of its proper divisors (10590555).
30084261 is a wasteful number, since it uses less digits than its factorization.
30084261 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 652.
The product of its (nonzero) digits is 1152, while the sum is 24.
The square root of 30084261 is about 5484.9121232705. The cubic root of 30084261 is about 311.0138881251.
The spelling of 30084261 in words is "thirty million, eighty-four thousand, two hundred sixty-one".
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