Base | Representation |
---|---|
bin | 100110100101… |
… | …0111110010110 |
3 | 1102001210101200 |
4 | 1031022332112 |
5 | 20134330123 |
6 | 2001333330 |
7 | 333644463 |
oct | 115127626 |
9 | 42053350 |
10 | 20230038 |
11 | 10468144 |
12 | 6937246 |
13 | 426404a |
14 | 298866a |
15 | 1b99143 |
hex | 134af96 |
20230038 has 48 divisors (see below), whose sum is σ = 45714240. Its totient is φ = 6460272.
The previous prime is 20230037. The next prime is 20230039. The reversal of 20230038 is 83003202.
It is an interprime number because it is at equal distance from previous prime (20230037) and next prime (20230039).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a self number, because there is not a number n which added to its sum of digits gives 20230038.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20230031) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45445 + ... + 45887.
It is an arithmetic number, because the mean of its divisors is an integer number (952380).
Almost surely, 220230038 is an apocalyptic number.
20230038 is an abundant number, since it is smaller than the sum of its proper divisors (25484202).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20230038 is a wasteful number, since it uses less digits than its factorization.
20230038 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 553 (or 550 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 20230038 is about 4497.7814531166. The cubic root of 20230038 is about 272.4784956237.
The spelling of 20230038 in words is "twenty million, two hundred thirty thousand, thirty-eight".
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