Base | Representation |
---|---|
bin | 1010110111100… |
… | …0010001000100 |
3 | 10011202202220021 |
4 | 2231320101010 |
5 | 43132101010 |
6 | 4304544524 |
7 | 1062302215 |
oct | 255702104 |
9 | 104682807 |
10 | 45581380 |
11 | 23802a69 |
12 | 13322144 |
13 | 959c140 |
14 | 60a740c |
15 | 40058da |
hex | 2b78444 |
45581380 has 48 divisors (see below), whose sum is σ = 108521280. Its totient is φ = 15942528.
The previous prime is 45581329. The next prime is 45581383. The reversal of 45581380 is 8318554.
It is not an unprimeable number, because it can be changed into a prime (45581383) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327 + ... + 9553.
It is an arithmetic number, because the mean of its divisors is an integer number (2260860).
Almost surely, 245581380 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 45581380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54260640).
45581380 is an abundant number, since it is smaller than the sum of its proper divisors (62939900).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
45581380 is a wasteful number, since it uses less digits than its factorization.
45581380 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9268 (or 9266 counting only the distinct ones).
The product of its (nonzero) digits is 19200, while the sum is 34.
The square root of 45581380 is about 6751.3983736705. The cubic root of 45581380 is about 357.2145634306.
The spelling of 45581380 in words is "forty-five million, five hundred eighty-one thousand, three hundred eighty".
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