Base | Representation |
---|---|
bin | 1010101000111… |
… | …10111111001001 |
3 | 20012221200001101 |
4 | 11110132333021 |
5 | 140322142011 |
6 | 12505021401 |
7 | 2132443141 |
oct | 524367711 |
9 | 205850041 |
10 | 89255881 |
11 | 464232a0 |
12 | 25a84861 |
13 | 15651340 |
14 | bbd5921 |
15 | 7c812c1 |
hex | 551efc9 |
89255881 has 16 divisors (see below), whose sum is σ = 108480960. Its totient is φ = 72313920.
The previous prime is 89255879. The next prime is 89255891. The reversal of 89255881 is 18855298.
It is a cyclic number.
It is not a de Polignac number, because 89255881 - 21 = 89255879 is a prime.
It is a super-2 number, since 2×892558812 = 15933224586172322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (89255861) 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, 6615 + ... + 14908.
It is an arithmetic number, because the mean of its divisors is an integer number (6780060).
Almost surely, 289255881 is an apocalyptic number.
It is an amenable number.
89255881 is a deficient number, since it is larger than the sum of its proper divisors (19225079).
89255881 is a wasteful number, since it uses less digits than its factorization.
89255881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21576.
The product of its digits is 230400, while the sum is 46.
The square root of 89255881 is about 9447.5330642449. The cubic root of 89255881 is about 446.9019815876.
It can be divided in two parts, 89 and 255881, that added together give a triangular number (255970 = T715).
The spelling of 89255881 in words is "eighty-nine million, two hundred fifty-five thousand, eight hundred eighty-one".
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