Base | Representation |
---|---|
bin | 1010101101101… |
… | …01000110011100 |
3 | 20021002220111020 |
4 | 11112311012130 |
5 | 141001330443 |
6 | 12530124140 |
7 | 2140613562 |
oct | 526650634 |
9 | 207086436 |
10 | 89870748 |
11 | 46803250 |
12 | 26120650 |
13 | 15808176 |
14 | bd15a32 |
15 | 7d53583 |
hex | 55b519c |
89870748 has 48 divisors (see below), whose sum is σ = 229703040. Its totient is φ = 27121600.
The previous prime is 89870719. The next prime is 89870749. The reversal of 89870748 is 84707898.
It is a self number, because there is not a number n which added to its sum of digits gives 89870748.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (89870749) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34243 + ... + 36773.
It is an arithmetic number, because the mean of its divisors is an integer number (4785480).
Almost surely, 289870748 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 89870748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114851520).
89870748 is an abundant number, since it is smaller than the sum of its proper divisors (139832292).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
89870748 is a wasteful number, since it uses less digits than its factorization.
89870748 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2818 (or 2816 counting only the distinct ones).
The product of its (nonzero) digits is 903168, while the sum is 51.
The square root of 89870748 is about 9480.0183544126. The cubic root of 89870748 is about 447.9258420513.
The spelling of 89870748 in words is "eighty-nine million, eight hundred seventy thousand, seven hundred forty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •