Base | Representation |
---|---|
bin | 11011010111100… |
… | …10000100010000 |
3 | 120222222221000200 |
4 | 31223302010100 |
5 | 432233043242 |
6 | 34440415200 |
7 | 5455256400 |
oct | 1553620420 |
9 | 528887020 |
10 | 229581072 |
11 | 108657726 |
12 | 64a77500 |
13 | 387436b6 |
14 | 226c2800 |
15 | 1524e04c |
hex | daf2110 |
229581072 has 90 divisors (see below), whose sum is σ = 747430398. Its totient is φ = 65592576.
The previous prime is 229581067. The next prime is 229581091. The reversal of 229581072 is 270185922.
229581072 is a `hidden beast` number, since 2 + 2 + 9 + 581 + 0 + 72 = 666.
It can be written as a sum of positive squares in only one way, i.e., 121088016 + 108493056 = 11004^2 + 10416^2 .
It is a Harshad number since it is a multiple of its sum of digits (36).
It is an unprimeable number.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9213 + ... + 23324.
Almost surely, 2229581072 is an apocalyptic number.
It is an amenable number.
229581072 is an abundant number, since it is smaller than the sum of its proper divisors (517849326).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
229581072 is a wasteful number, since it uses less digits than its factorization.
229581072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32565 (or 32549 counting only the distinct ones).
The product of its (nonzero) digits is 20160, while the sum is 36.
The square root of 229581072 is about 15151.9329459974. The cubic root of 229581072 is about 612.3203500338.
The spelling of 229581072 in words is "two hundred twenty-nine million, five hundred eighty-one thousand, seventy-two".
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