Base | Representation |
---|---|
bin | 1001100011111… |
… | …1010110111100 |
3 | 2210110120021100 |
4 | 2120333112330 |
5 | 40231333104 |
6 | 3551333100 |
7 | 664614243 |
oct | 230772674 |
9 | 83416240 |
10 | 40105404 |
11 | 20702869 |
12 | 11521190 |
13 | 8402811 |
14 | 547d95a |
15 | 37c3139 |
hex | 263f5bc |
40105404 has 18 divisors (see below), whose sum is σ = 101377640. Its totient is φ = 13368456.
The previous prime is 40105391. The next prime is 40105411. The reversal of 40105404 is 40450104.
It is a tau number, because it is divible by the number of its divisors (18).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 556984 + ... + 557055.
Almost surely, 240105404 is an apocalyptic number.
It is an amenable number.
40105404 is an abundant number, since it is smaller than the sum of its proper divisors (61272236).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
40105404 is a wasteful number, since it uses less digits than its factorization.
40105404 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1114049 (or 1114044 counting only the distinct ones).
The product of its (nonzero) digits is 320, while the sum is 18.
The square root of 40105404 is about 6332.8827559019. The cubic root of 40105404 is about 342.2953230365.
Adding to 40105404 its reverse (40450104), we get a palindrome (80555508).
The spelling of 40105404 in words is "forty million, one hundred five thousand, four hundred four".
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