Base | Representation |
---|---|
bin | 1010101001100… |
… | …01100010101000 |
3 | 20020002112022011 |
4 | 11110301202220 |
5 | 140332110010 |
6 | 12510405304 |
7 | 2133210541 |
oct | 524614250 |
9 | 206075264 |
10 | 89331880 |
11 | 46475400 |
12 | 25b00834 |
13 | 15679b01 |
14 | bc154c8 |
15 | 7c98a8a |
hex | 55318a8 |
89331880 has 48 divisors (see below), whose sum is σ = 220942260. Its totient is φ = 32482560.
The previous prime is 89331833. The next prime is 89331883. The reversal of 89331880 is 8813398.
It can be written as a sum of positive squares in 2 ways, for example, as 89075844 + 256036 = 9438^2 + 506^2 .
It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (40).
It is not an unprimeable number, because it can be changed into a prime (89331883) 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 11 ways as a sum of consecutive naturals, for example, 4389 + ... + 14068.
Almost surely, 289331880 is an apocalyptic number.
It is an amenable number.
89331880 is an abundant number, since it is smaller than the sum of its proper divisors (131610380).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
89331880 is a wasteful number, since it uses less digits than its factorization.
89331880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18490 (or 18475 counting only the distinct ones).
The product of its (nonzero) digits is 41472, while the sum is 40.
The square root of 89331880 is about 9451.5543695204. The cubic root of 89331880 is about 447.0287873063.
It can be divided in two parts, 893318 and 80, that added together give a palindrome (893398).
The spelling of 89331880 in words is "eighty-nine million, three hundred thirty-one thousand, eight hundred eighty".
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