Base | Representation |
---|---|
bin | 100111001010… |
… | …1111110001110 |
3 | 1102122101210011 |
4 | 1032111332032 |
5 | 20224142410 |
6 | 2012103434 |
7 | 336364210 |
oct | 116257616 |
9 | 42571704 |
10 | 20537230 |
11 | 10657a1a |
12 | 6a64b7a |
13 | 4340b0c |
14 | 2a285b0 |
15 | 1c0a18a |
hex | 1395f8e |
20537230 has 32 divisors (see below), whose sum is σ = 43236864. Its totient is φ = 6876576.
The previous prime is 20537227. The next prime is 20537243. The reversal of 20537230 is 3273502.
It is a happy number.
It is a congruent number.
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, 402 + ... + 6421.
It is an arithmetic number, because the mean of its divisors is an integer number (1351152).
Almost surely, 220537230 is an apocalyptic number.
20537230 is an abundant number, since it is smaller than the sum of its proper divisors (22699634).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20537230 is a wasteful number, since it uses less digits than its factorization.
20537230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6880.
The product of its (nonzero) digits is 1260, while the sum is 22.
The square root of 20537230 is about 4531.8020698173. The cubic root of 20537230 is about 273.8507632091.
The spelling of 20537230 in words is "twenty million, five hundred thirty-seven thousand, two hundred thirty".
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