Base | Representation |
---|---|
bin | 1010101010101… |
… | …00010001001001 |
3 | 20020100202102100 |
4 | 11111110101021 |
5 | 140401132441 |
6 | 12513424013 |
7 | 2134342332 |
oct | 525242111 |
9 | 206322370 |
10 | 89474121 |
11 | 46562260 |
12 | 25b6b009 |
13 | 156c9789 |
14 | bc51289 |
15 | 7cc5cb6 |
hex | 5554449 |
89474121 has 24 divisors (see below), whose sum is σ = 141425856. Its totient is φ = 54059040.
The previous prime is 89474113. The next prime is 89474131. The reversal of 89474121 is 12147498.
It is not a de Polignac number, because 89474121 - 23 = 89474113 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is not an unprimeable number, because it can be changed into a prime (89474131) 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 23 ways as a sum of consecutive naturals, for example, 35716 + ... + 38138.
It is an arithmetic number, because the mean of its divisors is an integer number (5892744).
Almost surely, 289474121 is an apocalyptic number.
It is an amenable number.
89474121 is a deficient number, since it is larger than the sum of its proper divisors (51951735).
89474121 is a wasteful number, since it uses less digits than its factorization.
89474121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2813 (or 2810 counting only the distinct ones).
The product of its digits is 16128, while the sum is 36.
The square root of 89474121 is about 9459.0761176766. The cubic root of 89474121 is about 447.2659258763.
The spelling of 89474121 in words is "eighty-nine million, four hundred seventy-four thousand, one hundred twenty-one".
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