Base | Representation |
---|---|
bin | 1001110000011… |
… | …0010001000011 |
3 | 2211222221212102 |
4 | 2130012101003 |
5 | 40433421011 |
6 | 4021021015 |
7 | 1004546450 |
oct | 234062103 |
9 | 84887772 |
10 | 40920131 |
11 | 2110999a |
12 | 1185476b |
13 | 86295c5 |
14 | 5612827 |
15 | 38d473b |
hex | 2706443 |
40920131 has 8 divisors (see below), whose sum is σ = 48378720. Its totient is φ = 33864768.
The previous prime is 40920107. The next prime is 40920161. The reversal of 40920131 is 13102904.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 40920131 - 26 = 40920067 is a prime.
It is a super-2 number, since 2×409201312 = 3348914242114322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (40920101) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100586 + ... + 100991.
It is an arithmetic number, because the mean of its divisors is an integer number (6047340).
Almost surely, 240920131 is an apocalyptic number.
40920131 is a deficient number, since it is larger than the sum of its proper divisors (7458589).
40920131 is a wasteful number, since it uses less digits than its factorization.
40920131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 201613.
The product of its (nonzero) digits is 216, while the sum is 20.
The square root of 40920131 is about 6396.8844760555. The cubic root of 40920131 is about 344.5976714457.
The spelling of 40920131 in words is "forty million, nine hundred twenty thousand, one hundred thirty-one".
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