Base | Representation |
---|---|
bin | 1001101000000… |
… | …0101010010000 |
3 | 2210222011011212 |
4 | 2122000222100 |
5 | 40313413010 |
6 | 4001155252 |
7 | 1000110122 |
oct | 232005220 |
9 | 83864155 |
10 | 40372880 |
11 | 20875819 |
12 | 1162bb28 |
13 | 84974a2 |
14 | 550d212 |
15 | 3827505 |
hex | 2680a90 |
40372880 has 20 divisors (see below), whose sum is σ = 93867132. Its totient is φ = 16149120.
The previous prime is 40372879. The next prime is 40372897. The reversal of 40372880 is 8827304.
It can be written as a sum of positive squares in 2 ways, for example, as 23464336 + 16908544 = 4844^2 + 4112^2 .
It is a tau number, because it is divible by the number of its divisors (20).
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252251 + ... + 252410.
Almost surely, 240372880 is an apocalyptic number.
40372880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
40372880 is an abundant number, since it is smaller than the sum of its proper divisors (53494252).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
40372880 is a wasteful number, since it uses less digits than its factorization.
40372880 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 504674 (or 504668 counting only the distinct ones).
The product of its (nonzero) digits is 10752, while the sum is 32.
The square root of 40372880 is about 6353.9656908107. The cubic root of 40372880 is about 343.0545972413.
The spelling of 40372880 in words is "forty million, three hundred seventy-two thousand, eight hundred eighty".
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