| Base | Representation |
|---|---|
| bin | 1001101001001… |
| … | …1011101011000 |
| 3 | 2211010001210201 |
| 4 | 2122103131120 |
| 5 | 40323344010 |
| 6 | 4002551544 |
| 7 | 1000550452 |
| oct | 232233530 |
| 9 | 84101721 |
| 10 | 40449880 |
| 11 | 20918659 |
| 12 | 116685b4 |
| 13 | 84c3553 |
| 14 | 552d2d2 |
| 15 | 384023a |
| hex | 2693758 |
40449880 has 64 divisors (see below), whose sum is σ = 94610880. Its totient is φ = 15552000.
The previous prime is 40449863. The next prime is 40449889. The reversal of 40449880 is 8894404.
40449880 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 (37).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (40449889) by changing a digit.
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 15 ways as a sum of consecutive naturals, for example, 223390 + ... + 223570.
It is an arithmetic number, because the mean of its divisors is an integer number (1478295).
Almost surely, 240449880 is an apocalyptic number.
40449880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 40449880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47305440).
40449880 is an abundant number, since it is smaller than the sum of its proper divisors (54161000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
40449880 is a wasteful number, since it uses less digits than its factorization.
40449880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 380 (or 376 counting only the distinct ones).
The product of its (nonzero) digits is 36864, while the sum is 37.
The square root of 40449880 is about 6360.0220125405. The cubic root of 40449880 is about 343.2725523682.
It can be divided in two parts, 4044 and 9880, that added together give a square (13924 = 1182).
The spelling of 40449880 in words is "forty million, four hundred forty-nine thousand, eight hundred eighty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •