Base | Representation |
---|---|
bin | 1010100110110… |
… | …11111111110000 |
3 | 20012102201122200 |
4 | 11103123333300 |
5 | 140234401423 |
6 | 12455103200 |
7 | 2130221151 |
oct | 523337760 |
9 | 205381580 |
10 | 88981488 |
11 | 46256122 |
12 | 25971b00 |
13 | 1558648b |
14 | bb63928 |
15 | 7c29d43 |
hex | 54dbff0 |
88981488 has 120 divisors (see below), whose sum is σ = 258532560. Its totient is φ = 28554240.
The previous prime is 88981433. The next prime is 88981513. The reversal of 88981488 is 88418988.
88981488 is a `hidden beast` number, since 8 + 89 + 81 + 488 = 666.
It is a Cunningham number, because it is equal to 94332-1.
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 679183 + ... + 679313.
It is an arithmetic number, because the mean of its divisors is an integer number (2154438).
Almost surely, 288981488 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 88981488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129266280).
88981488 is an abundant number, since it is smaller than the sum of its proper divisors (169551072).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
88981488 is a wasteful number, since it uses less digits than its factorization.
88981488 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 287 (or 278 counting only the distinct ones).
The product of its digits is 1179648, while the sum is 54.
The square root of 88981488 is about 9432.9999469946. Note that the first 4 decimals coincide. The cubic root of 88981488 is about 446.4435518460.
Subtracting from 88981488 its reverse (88418988), we obtain a square (562500 = 7502).
The spelling of 88981488 in words is "eighty-eight million, nine hundred eighty-one thousand, four hundred eighty-eight".
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