Base | Representation |
---|---|
bin | 1000100001100110… |
… | …1100111010011110 |
3 | 12220111002202001212 |
4 | 2020121230322132 |
5 | 14141320021232 |
6 | 1015025104422 |
7 | 110465260436 |
oct | 21031547236 |
9 | 5814082055 |
10 | 2288438942 |
11 | a74845059 |
12 | 53a488112 |
13 | 2a6157baa |
14 | 179cdd2c6 |
15 | d5d8aeb2 |
hex | 8866ce9e |
2288438942 has 4 divisors (see below), whose sum is σ = 3432658416. Its totient is φ = 1144219470.
The previous prime is 2288438927. The next prime is 2288438947. The reversal of 2288438942 is 2498348822.
It is a happy number.
2288438942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2498348822 = 2 ⋅1249174411.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2288438947) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572109734 + ... + 572109737.
It is an arithmetic number, because the mean of its divisors is an integer number (858164604).
Almost surely, 22288438942 is an apocalyptic number.
2288438942 is a deficient number, since it is larger than the sum of its proper divisors (1144219474).
2288438942 is a wasteful number, since it uses less digits than its factorization.
2288438942 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1144219473.
The product of its digits is 1769472, while the sum is 50.
The square root of 2288438942 is about 47837.6310241216. The cubic root of 2288438942 is about 1317.7907147720.
The spelling of 2288438942 in words is "two billion, two hundred eighty-eight million, four hundred thirty-eight thousand, nine hundred forty-two".
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