Base | Representation |
---|---|
bin | 1001100010010… |
… | …1101110111000 |
3 | 2210021020021210 |
4 | 2120211232320 |
5 | 40220003230 |
6 | 3545203120 |
7 | 663666234 |
oct | 230455670 |
9 | 83236253 |
10 | 40000440 |
11 | 20640a17 |
12 | 114904a0 |
13 | 8396acc |
14 | 54535c4 |
15 | 37a1eb0 |
hex | 2625bb8 |
40000440 has 32 divisors (see below), whose sum is σ = 120001680. Its totient is φ = 10666752.
The previous prime is 40000421. The next prime is 40000451. The reversal of 40000440 is 4400004.
40000440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
40000440 is a modest number, since divided by 440 gives 40 as remainder.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166549 + ... + 166788.
Almost surely, 240000440 is an apocalyptic number.
40000440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
40000440 is an abundant number, since it is smaller than the sum of its proper divisors (80001240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
40000440 is a wasteful number, since it uses less digits than its factorization.
40000440 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 333351 (or 333347 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 12.
The square root of 40000440 is about 6324.5901052954. The cubic root of 40000440 is about 341.9964433131.
Adding to 40000440 its reverse (4400004), we get a palindrome (44400444).
The spelling of 40000440 in words is "forty million, four hundred forty", and thus it is an aban number.
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