Base | Representation |
---|---|
bin | 100110001111… |
… | …0110001000101 |
3 | 1101201121000021 |
4 | 1030132301011 |
5 | 20113031330 |
6 | 1553415141 |
7 | 332261536 |
oct | 114366105 |
9 | 41647007 |
10 | 20048965 |
11 | 103540a2 |
12 | 686a4b1 |
13 | 41cc7c1 |
14 | 293c68d |
15 | 1b6067a |
hex | 131ec45 |
20048965 has 8 divisors (see below), whose sum is σ = 24618528. Its totient is φ = 15666000.
The previous prime is 20048953. The next prime is 20048969. The reversal of 20048965 is 56984002.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20048965 - 29 = 20048453 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 20048965.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20048969) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46411 + ... + 46840.
It is an arithmetic number, because the mean of its divisors is an integer number (3077316).
Almost surely, 220048965 is an apocalyptic number.
It is an amenable number.
20048965 is a deficient number, since it is larger than the sum of its proper divisors (4569563).
20048965 is an equidigital number, since it uses as much as digits as its factorization.
20048965 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 93299.
The product of its (nonzero) digits is 17280, while the sum is 34.
The square root of 20048965 is about 4477.6070618133. The cubic root of 20048965 is about 271.6631002246.
The spelling of 20048965 in words is "twenty million, forty-eight thousand, nine hundred sixty-five".
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