Base | Representation |
---|---|
bin | 100111001111… |
… | …0100101000010 |
3 | 1102201012010210 |
4 | 1032132211002 |
5 | 20231304412 |
6 | 2012534550 |
7 | 336602040 |
oct | 116364502 |
9 | 42635123 |
10 | 20572482 |
11 | 10681457 |
12 | 6a81456 |
13 | 4353b88 |
14 | 2a37390 |
15 | 1c1583c |
hex | 139e942 |
20572482 has 32 divisors (see below), whose sum is σ = 49790592. Its totient is φ = 5531904.
The previous prime is 20572457. The next prime is 20572507. The reversal of 20572482 is 28427502.
It is an interprime number because it is at equal distance from previous prime (20572457) and next prime (20572507).
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13693 + ... + 15120.
It is an arithmetic number, because the mean of its divisors is an integer number (1555956).
Almost surely, 220572482 is an apocalyptic number.
20572482 is an abundant number, since it is smaller than the sum of its proper divisors (29218110).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20572482 is a wasteful number, since it uses less digits than its factorization.
20572482 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28842.
The product of its (nonzero) digits is 8960, while the sum is 30.
The square root of 20572482 is about 4535.6898042084. The cubic root of 20572482 is about 274.0073612315.
Adding to 20572482 its reverse (28427502), we get a palindrome (48999984).
The spelling of 20572482 in words is "twenty million, five hundred seventy-two thousand, four hundred eighty-two".
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