Base | Representation |
---|---|
bin | 1001101000100… |
… | …0010011110010 |
3 | 2211000202011020 |
4 | 2122020103302 |
5 | 40320413320 |
6 | 4002000310 |
7 | 1000300350 |
oct | 232102362 |
9 | 84022136 |
10 | 40404210 |
11 | 20897310 |
12 | 11646096 |
13 | 84a8822 |
14 | 551a7d0 |
15 | 3831940 |
hex | 26884f2 |
40404210 has 64 divisors (see below), whose sum is σ = 120904704. Its totient is φ = 8395200.
The previous prime is 40404209. The next prime is 40404233. The reversal of 40404210 is 1240404.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 40404210.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6436 + ... + 11055.
It is an arithmetic number, because the mean of its divisors is an integer number (1889136).
Almost surely, 240404210 is an apocalyptic number.
40404210 is an abundant number, since it is smaller than the sum of its proper divisors (80500494).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
40404210 is a wasteful number, since it uses less digits than its factorization.
40404210 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17519.
The product of its (nonzero) digits is 128, while the sum is 15.
The square root of 40404210 is about 6356.4306021540. The cubic root of 40404210 is about 343.1433129134.
Adding to 40404210 its reverse (1240404), we get a palindrome (41644614).
The spelling of 40404210 in words is "forty million, four hundred four thousand, two hundred ten".
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