Base | Representation |
---|---|
bin | 111010111010… |
… | …0100011110100 |
3 | 2011010011210211 |
4 | 1311310203310 |
5 | 30401324012 |
6 | 3021555204 |
7 | 523346014 |
oct | 165644364 |
9 | 64104724 |
10 | 30886132 |
11 | 16486232 |
12 | a415b04 |
13 | 6525424 |
14 | 415dc44 |
15 | 2aa16a7 |
hex | 1d748f4 |
30886132 has 12 divisors (see below), whose sum is σ = 54464256. Its totient is φ = 15324920.
The previous prime is 30886111. The next prime is 30886133. The reversal of 30886132 is 23168803.
It is a junction number, because it is equal to n+sod(n) for n = 30886094 and 30886103.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30886133) 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, 28948 + ... + 29995.
It is an arithmetic number, because the mean of its divisors is an integer number (4538688).
Almost surely, 230886132 is an apocalyptic number.
It is an amenable number.
30886132 is a deficient number, since it is larger than the sum of its proper divisors (23578124).
30886132 is a wasteful number, since it uses less digits than its factorization.
30886132 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 59078 (or 59076 counting only the distinct ones).
The product of its (nonzero) digits is 6912, while the sum is 31.
The square root of 30886132 is about 5557.5293071652. The cubic root of 30886132 is about 313.7529667503.
The spelling of 30886132 in words is "thirty million, eight hundred eighty-six thousand, one hundred thirty-two".
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