Base | Representation |
---|---|
bin | 111010111010… |
… | …0100011010100 |
3 | 2011010011202122 |
4 | 1311310203110 |
5 | 30401323400 |
6 | 3021555112 |
7 | 523345640 |
oct | 165644324 |
9 | 64104678 |
10 | 30886100 |
11 | 16486203 |
12 | a415a98 |
13 | 65253cb |
14 | 415dc20 |
15 | 2aa1685 |
hex | 1d748d4 |
30886100 has 36 divisors (see below), whose sum is σ = 76599264. Its totient is φ = 10589280.
The previous prime is 30886099. The next prime is 30886109. The reversal of 30886100 is 168803.
It is a self number, because there is not a number n which added to its sum of digits gives 30886100.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30886109) 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, 21362 + ... + 22761.
Almost surely, 230886100 is an apocalyptic number.
It is an amenable number.
30886100 is an abundant number, since it is smaller than the sum of its proper divisors (45713164).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30886100 is a wasteful number, since it uses less digits than its factorization.
30886100 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 44144 (or 44137 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 26.
The square root of 30886100 is about 5557.5264281873. The cubic root of 30886100 is about 313.7528583942.
The spelling of 30886100 in words is "thirty million, eight hundred eighty-six thousand, one hundred".
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