Base | Representation |
---|---|
bin | 1010000100011000100010 |
3 | 11222002120100 |
4 | 22010120202 |
5 | 1133430034 |
6 | 132323230 |
7 | 31302012 |
oct | 12043042 |
9 | 4862510 |
10 | 2639394 |
11 | 154301a |
12 | a73516 |
13 | 715494 |
14 | 4c9c42 |
15 | 372099 |
hex | 284622 |
2639394 has 24 divisors (see below), whose sum is σ = 5748912. Its totient is φ = 875160.
The previous prime is 2639393. The next prime is 2639401. The reversal of 2639394 is 4939362.
It is a happy number.
2639394 is a `hidden beast` number, since 263 + 9 + 394 = 666.
It is a d-powerful number, because it can be written as 221 + 62 + 33 + 92 + 312 + 94 + 46 .
It is not an unprimeable number, because it can be changed into a prime (2639393) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5737 + ... + 6179.
It is an arithmetic number, because the mean of its divisors is an integer number (239538).
22639394 is an apocalyptic number.
2639394 is an abundant number, since it is smaller than the sum of its proper divisors (3109518).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2639394 is a wasteful number, since it uses less digits than its factorization.
2639394 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 782 (or 779 counting only the distinct ones).
The product of its digits is 34992, while the sum is 36.
The square root of 2639394 is about 1624.6211866155. The cubic root of 2639394 is about 138.1978887494.
Subtracting 2639394 from its reverse (4939362), we obtain a cube (2299968 = 1323).
The spelling of 2639394 in words is "two million, six hundred thirty-nine thousand, three hundred ninety-four".
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