Base | Representation |
---|---|
bin | 1010101011010… |
… | …11101110100000 |
3 | 20020112122020010 |
4 | 11111223232200 |
5 | 140412221313 |
6 | 12515444520 |
7 | 2135222430 |
oct | 525535640 |
9 | 206478203 |
10 | 89570208 |
11 | 46618472 |
12 | 25bb6740 |
13 | 15731430 |
14 | bc782c0 |
15 | 7ce44c3 |
hex | 556bba0 |
89570208 has 96 divisors (see below), whose sum is σ = 289408896. Its totient is φ = 23620608.
The previous prime is 89570171. The next prime is 89570213. The reversal of 89570208 is 80207598.
It is a tau number, because it is divible by the number of its divisors (96).
It is a super-2 number, since 2×895702082 = 16045644322326528, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3610 + ... + 13862.
It is an arithmetic number, because the mean of its divisors is an integer number (3014676).
Almost surely, 289570208 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 89570208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144704448).
89570208 is an abundant number, since it is smaller than the sum of its proper divisors (199838688).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
89570208 is a wasteful number, since it uses less digits than its factorization.
89570208 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10286 (or 10278 counting only the distinct ones).
The product of its (nonzero) digits is 40320, while the sum is 39.
The square root of 89570208 is about 9464.1538449034. The cubic root of 89570208 is about 447.4259761250.
It can be divided in two parts, 8957020 and 8, that added together give a triangular number (8957028 = T4232).
The spelling of 89570208 in words is "eighty-nine million, five hundred seventy thousand, two hundred eight".
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