Base | Representation |
---|---|
bin | 1010001110101… |
… | …0001110010010 |
3 | 2222201200001110 |
4 | 2203222032102 |
5 | 41440334133 |
6 | 4131314150 |
7 | 1030443636 |
oct | 243521622 |
9 | 88650043 |
10 | 42902418 |
11 | 22243249 |
12 | 1244b956 |
13 | 8b71960 |
14 | 59aadc6 |
15 | 3b76c63 |
hex | 28ea392 |
42902418 has 32 divisors (see below), whose sum is σ = 97272000. Its totient is φ = 12505536.
The previous prime is 42902417. The next prime is 42902423. The reversal of 42902418 is 81420924.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (42902411) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12993 + ... + 15956.
It is an arithmetic number, because the mean of its divisors is an integer number (3039750).
Almost surely, 242902418 is an apocalyptic number.
42902418 is an abundant number, since it is smaller than the sum of its proper divisors (54369582).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42902418 is a wasteful number, since it uses less digits than its factorization.
42902418 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28986.
The product of its (nonzero) digits is 4608, while the sum is 30.
The square root of 42902418 is about 6549.9937404550. The cubic root of 42902418 is about 350.0745909050.
The spelling of 42902418 in words is "forty-two million, nine hundred two thousand, four hundred eighteen".
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