Base | Representation |
---|---|
bin | 1010100111100… |
… | …10110000101000 |
3 | 20012121110120000 |
4 | 11103302300220 |
5 | 140300342403 |
6 | 12501103000 |
7 | 2131060041 |
oct | 523626050 |
9 | 205543500 |
10 | 89074728 |
11 | 4630a186 |
12 | 259b7a60 |
13 | 155b9a52 |
14 | bb898c8 |
15 | 7c477a3 |
hex | 54f2c28 |
89074728 has 80 divisors (see below), whose sum is σ = 252147060. Its totient is φ = 29376000.
The previous prime is 89074723. The next prime is 89074751. The reversal of 89074728 is 82747098.
It can be written as a sum of positive squares in 2 ways, for example, as 87946884 + 1127844 = 9378^2 + 1062^2 .
It is not an unprimeable number, because it can be changed into a prime (89074723) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 64768 + ... + 66128.
Almost surely, 289074728 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 89074728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126073530).
89074728 is an abundant number, since it is smaller than the sum of its proper divisors (163072332).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
89074728 is a wasteful number, since it uses less digits than its factorization.
89074728 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1480 (or 1467 counting only the distinct ones).
The product of its (nonzero) digits is 225792, while the sum is 45.
The square root of 89074728 is about 9437.9408771193. The cubic root of 89074728 is about 446.5994339537.
The spelling of 89074728 in words is "eighty-nine million, seventy-four thousand, seven hundred twenty-eight".
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