Base | Representation |
---|---|
bin | 100111000100… |
… | …1001110101000 |
3 | 1102112202011220 |
4 | 1032021032220 |
5 | 20221010112 |
6 | 2011022040 |
7 | 336056061 |
oct | 116111650 |
9 | 42482156 |
10 | 20485032 |
11 | 10621787 |
12 | 6a3a920 |
13 | 4323129 |
14 | 2a13568 |
15 | 1be998c |
hex | 13893a8 |
20485032 has 16 divisors (see below), whose sum is σ = 51212640. Its totient is φ = 6828336.
The previous prime is 20485009. The next prime is 20485033. The reversal of 20485032 is 23058402.
It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 853543 = 20485032 / (2 + 0 + 4 + 8 + 5 + 0 + 3 + 2).
It is a junction number, because it is equal to n+sod(n) for n = 20484993 and 20485011.
It is not an unprimeable number, because it can be changed into a prime (20485033) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 426748 + ... + 426795.
It is an arithmetic number, because the mean of its divisors is an integer number (3200790).
Almost surely, 220485032 is an apocalyptic number.
It is an amenable number.
20485032 is an abundant number, since it is smaller than the sum of its proper divisors (30727608).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20485032 is a wasteful number, since it uses less digits than its factorization.
20485032 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 853552 (or 853548 counting only the distinct ones).
The product of its (nonzero) digits is 1920, while the sum is 24.
The square root of 20485032 is about 4526.0393281544. The cubic root of 20485032 is about 273.6185574431.
The spelling of 20485032 in words is "twenty million, four hundred eighty-five thousand, thirty-two".
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