Base | Representation |
---|---|
bin | 100110101110… |
… | …0101000111110 |
3 | 1102012110122200 |
4 | 1031130220332 |
5 | 20144134043 |
6 | 2003052330 |
7 | 334365444 |
oct | 115345076 |
9 | 42173580 |
10 | 20302398 |
11 | 10507546 |
12 | 69710a6 |
13 | 428ac6c |
14 | 29a6b94 |
15 | 1bb07d3 |
hex | 135ca3e |
20302398 has 12 divisors (see below), whose sum is σ = 43988568. Its totient is φ = 6767460.
The previous prime is 20302397. The next prime is 20302409. The reversal of 20302398 is 89320302.
It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20302397) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 563938 + ... + 563973.
It is an arithmetic number, because the mean of its divisors is an integer number (3665714).
Almost surely, 220302398 is an apocalyptic number.
20302398 is an abundant number, since it is smaller than the sum of its proper divisors (23686170).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20302398 is a wasteful number, since it uses less digits than its factorization.
20302398 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1127919 (or 1127916 counting only the distinct ones).
The product of its (nonzero) digits is 2592, while the sum is 27.
The square root of 20302398 is about 4505.8182386776. The cubic root of 20302398 is about 272.8029814663.
The spelling of 20302398 in words is "twenty million, three hundred two thousand, three hundred ninety-eight".
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