Base | Representation |
---|---|
bin | 10010111011100… |
… | …10110000111001 |
3 | 102001211010120111 |
4 | 21131302300321 |
5 | 311123230144 |
6 | 23431424321 |
7 | 3635551324 |
oct | 1135626071 |
9 | 361733514 |
10 | 158805049 |
11 | 81706647 |
12 | 452250a1 |
13 | 26b928b0 |
14 | 1713b7bb |
15 | de1d534 |
hex | 9772c39 |
158805049 has 16 divisors (see below), whose sum is σ = 174968640. Its totient is φ = 143236800.
The previous prime is 158805047. The next prime is 158805067. The reversal of 158805049 is 940508851.
It is a cyclic number.
It is not a de Polignac number, because 158805049 - 21 = 158805047 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (158805047) 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, 150574 + ... + 151624.
It is an arithmetic number, because the mean of its divisors is an integer number (10935540).
Almost surely, 2158805049 is an apocalyptic number.
It is an amenable number.
158805049 is a deficient number, since it is larger than the sum of its proper divisors (16163591).
158805049 is a wasteful number, since it uses less digits than its factorization.
158805049 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1320.
The product of its (nonzero) digits is 57600, while the sum is 40.
The square root of 158805049 is about 12601.7875319337. The cubic root of 158805049 is about 541.5286464072.
The spelling of 158805049 in words is "one hundred fifty-eight million, eight hundred five thousand, forty-nine".
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