Base | Representation |
---|---|
bin | 100110101000… |
… | …0111100111100 |
3 | 1102010000222120 |
4 | 1031100330330 |
5 | 20141121044 |
6 | 2002042540 |
7 | 334106043 |
oct | 115207474 |
9 | 42100876 |
10 | 20254524 |
11 | 10484584 |
12 | 6949450 |
13 | 4272234 |
14 | 299355a |
15 | 1ba1519 |
hex | 1350f3c |
20254524 has 24 divisors (see below), whose sum is σ = 47604480. Its totient is φ = 6702384.
The previous prime is 20254519. The next prime is 20254537. The reversal of 20254524 is 42545202.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 20254494 and 20254503.
It is a congruent number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 4404 + ... + 7739.
It is an arithmetic number, because the mean of its divisors is an integer number (1983520).
Almost surely, 220254524 is an apocalyptic number.
It is an amenable number.
20254524 is an abundant number, since it is smaller than the sum of its proper divisors (27349956).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20254524 is a wasteful number, since it uses less digits than its factorization.
20254524 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12289 (or 12287 counting only the distinct ones).
The product of its (nonzero) digits is 3200, while the sum is 24.
The square root of 20254524 is about 4500.5026385949. The cubic root of 20254524 is about 272.5883853235.
Adding to 20254524 its reverse (42545202), we get a palindrome (62799726).
The spelling of 20254524 in words is "twenty million, two hundred fifty-four thousand, five hundred twenty-four".
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