Base | Representation |
---|---|
bin | 1000111000000… |
… | …10101010100000 |
3 | 12012002221122200 |
4 | 10130002222200 |
5 | 123030203213 |
6 | 11215533200 |
7 | 1562616663 |
oct | 434025240 |
9 | 165087580 |
10 | 74459808 |
11 | 39037835 |
12 | 20b2a200 |
13 | 12570777 |
14 | 9c636da |
15 | 680c273 |
hex | 4702aa0 |
74459808 has 72 divisors (see below), whose sum is σ = 212858100. Its totient is φ = 24689664.
The previous prime is 74459807. The next prime is 74459821. The reversal of 74459808 is 80895447.
It can be written as a sum of positive squares in 2 ways, for example, as 74442384 + 17424 = 8628^2 + 132^2 .
It is a tau number, because it is divible by the number of its divisors (72).
It is not an unprimeable number, because it can be changed into a prime (74459807) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65388 + ... + 66516.
Almost surely, 274459808 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 74459808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106429050).
74459808 is an abundant number, since it is smaller than the sum of its proper divisors (138398292).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
74459808 is a wasteful number, since it uses less digits than its factorization.
74459808 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1374 (or 1363 counting only the distinct ones).
The product of its (nonzero) digits is 322560, while the sum is 45.
The square root of 74459808 is about 8629.0096766663. The cubic root of 74459808 is about 420.7014130005.
The spelling of 74459808 in words is "seventy-four million, four hundred fifty-nine thousand, eight hundred eight".
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