Base | Representation |
---|---|
bin | 100111111001… |
… | …0001010100000 |
3 | 1110100120210000 |
4 | 1033302022200 |
5 | 20323233343 |
6 | 2024140000 |
7 | 342526143 |
oct | 117621240 |
9 | 43316700 |
10 | 20914848 |
11 | 108956a9 |
12 | 7007600 |
13 | 4443966 |
14 | 2ac605a |
15 | 1c81ed3 |
hex | 13f22a0 |
20914848 has 60 divisors (see below), whose sum is σ = 61517610. Its totient is φ = 6970752.
The previous prime is 20914837. The next prime is 20914867. The reversal of 20914848 is 84841902.
It can be written as a sum of positive squares in only one way, i.e., 20903184 + 11664 = 4572^2 + 108^2 .
It is a Harshad number since it is a multiple of its sum of digits (36).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1443 + ... + 6626.
Almost surely, 220914848 is an apocalyptic number.
It is an amenable number.
20914848 is an abundant number, since it is smaller than the sum of its proper divisors (40602762).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20914848 is an equidigital number, since it uses as much as digits as its factorization.
20914848 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8091 (or 8074 counting only the distinct ones).
The product of its (nonzero) digits is 18432, while the sum is 36.
The square root of 20914848 is about 4573.2754126556. The cubic root of 20914848 is about 275.5190110322.
The spelling of 20914848 in words is "twenty million, nine hundred fourteen thousand, eight hundred forty-eight".
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