Base | Representation |
---|---|
bin | 1010101101001… |
… | …11110111100001 |
3 | 20021000011010201 |
4 | 11112213313201 |
5 | 140443112140 |
6 | 12525025201 |
7 | 2140266550 |
oct | 526476741 |
9 | 207004121 |
10 | 89816545 |
11 | 46776555 |
12 | 260b5201 |
13 | 157b95b0 |
14 | bcddd97 |
15 | 7d4249a |
hex | 55a7de1 |
89816545 has 32 divisors (see below), whose sum is σ = 133943040. Its totient is φ = 56298240.
The previous prime is 89816543. The next prime is 89816563. The reversal of 89816545 is 54561898.
It is not a de Polignac number, because 89816545 - 21 = 89816543 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is a junction number, because it is equal to n+sod(n) for n = 89816495 and 89816504.
It is not an unprimeable number, because it can be changed into a prime (89816543) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48690 + ... + 50500.
It is an arithmetic number, because the mean of its divisors is an integer number (4185720).
It is a Poulet number, since it divides 289816544-1.
Almost surely, 289816545 is an apocalyptic number.
It is an amenable number.
89816545 is a deficient number, since it is larger than the sum of its proper divisors (44126495).
89816545 is a wasteful number, since it uses less digits than its factorization.
89816545 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1945.
The product of its digits is 345600, while the sum is 46.
The square root of 89816545 is about 9477.1591207492. The cubic root of 89816545 is about 447.8357726734.
The spelling of 89816545 in words is "eighty-nine million, eight hundred sixteen thousand, five hundred forty-five".
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