Base | Representation |
---|---|
bin | 1001101001000… |
… | …00101001000001 |
3 | 12122011211100011 |
4 | 10310200221001 |
5 | 131200432144 |
6 | 12005224521 |
7 | 2001263254 |
oct | 464405101 |
9 | 178154304 |
10 | 80874049 |
11 | 41718963 |
12 | 23102141 |
13 | 139a8189 |
14 | aa5309b |
15 | 7177a34 |
hex | 4d20a41 |
80874049 has 15 divisors (see below), whose sum is σ = 89816227. Its totient is φ = 72807328.
The previous prime is 80874047. The next prime is 80874077. The reversal of 80874049 is 94047808.
The square root of 80874049 is 8993.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 62964225 + 17909824 = 7935^2 + 4232^2 .
It is not a de Polignac number, because 80874049 - 21 = 80874047 is a prime.
It is a super-2 number, since 2×808740492 = 13081223603308802, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (80874047) by changing a digit.
It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 3516252 + ... + 3516274.
Almost surely, 280874049 is an apocalyptic number.
80874049 is the 8993-rd square number.
80874049 is the 4497-th centered octagonal number.
It is an amenable number.
80874049 is a deficient number, since it is larger than the sum of its proper divisors (8942178).
80874049 is an frugal number, since it uses more digits than its factorization.
80874049 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 126 (or 40 counting only the distinct ones).
The product of its (nonzero) digits is 64512, while the sum is 40.
The cubic root of 80874049 is about 432.4504920666.
The spelling of 80874049 in words is "eighty million, eight hundred seventy-four thousand, forty-nine".
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