Base | Representation |
---|---|
bin | 1010100001000… |
… | …10110100011101 |
3 | 20011000012012201 |
4 | 11100202310131 |
5 | 140041114010 |
6 | 12430531501 |
7 | 2120611633 |
oct | 520426435 |
9 | 204005181 |
10 | 88223005 |
11 | 45888282 |
12 | 25666b91 |
13 | 1537c180 |
14 | ba07353 |
15 | 7b2a23a |
hex | 5422d1d |
88223005 has 16 divisors (see below), whose sum is σ = 116166960. Its totient is φ = 63917568.
The previous prime is 88222991. The next prime is 88223011. The reversal of 88223005 is 50032288.
It can be written as a sum of positive squares in 8 ways, for example, as 4280761 + 83942244 = 2069^2 + 9162^2 .
It is a de Polignac number, because none of the positive numbers 2k-88223005 is a prime.
It is a super-2 number, since 2×882230052 = 15566597222460050, which contains 22 as substring.
It is a congruent number.
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, 9360 + ... + 16249.
It is an arithmetic number, because the mean of its divisors is an integer number (7260435).
Almost surely, 288223005 is an apocalyptic number.
It is an amenable number.
88223005 is a deficient number, since it is larger than the sum of its proper divisors (27943955).
88223005 is a wasteful number, since it uses less digits than its factorization.
88223005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25680.
The product of its (nonzero) digits is 3840, while the sum is 28.
The square root of 88223005 is about 9392.7102052602. The cubic root of 88223005 is about 445.1714274508.
The spelling of 88223005 in words is "eighty-eight million, two hundred twenty-three thousand, five".
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