Base | Representation |
---|---|
bin | 1010100100011… |
… | …11011110111010 |
3 | 20011211210202100 |
4 | 11102033132322 |
5 | 140144334330 |
6 | 12444244230 |
7 | 2124444360 |
oct | 522173672 |
9 | 204753670 |
10 | 88668090 |
11 | 46061715 |
12 | 25840676 |
13 | 154a6934 |
14 | bac1630 |
15 | 7bb7060 |
hex | 548f7ba |
88668090 has 144 divisors (see below), whose sum is σ = 280455552. Its totient is φ = 19035648.
The previous prime is 88668089. The next prime is 88668101. The reversal of 88668090 is 9086688.
It is a super-3 number, since 3×886680903 (a number of 25 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is an unprimeable number.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 181827 + ... + 182313.
It is an arithmetic number, because the mean of its divisors is an integer number (1947608).
Almost surely, 288668090 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 88668090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140227776).
88668090 is an abundant number, since it is smaller than the sum of its proper divisors (191787462).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
88668090 is a wasteful number, since it uses less digits than its factorization.
88668090 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 541 (or 521 counting only the distinct ones).
The product of its (nonzero) digits is 165888, while the sum is 45.
The square root of 88668090 is about 9416.3735057611. The cubic root of 88668090 is about 445.9188018710.
The spelling of 88668090 in words is "eighty-eight million, six hundred sixty-eight thousand, ninety".
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