Base | Representation |
---|---|
bin | 10001001011101… |
… | …111011001111110 |
3 | 202002110200010100 |
4 | 101023233121332 |
5 | 1042300243210 |
6 | 44335021530 |
7 | 10100266611 |
oct | 2113573176 |
9 | 662420110 |
10 | 288290430 |
11 | 13880695a |
12 | 8066a8a6 |
13 | 4795b06c |
14 | 2a406178 |
15 | 1a4995c0 |
hex | 112ef67e |
288290430 has 48 divisors (see below), whose sum is σ = 754082784. Its totient is φ = 76413120.
The previous prime is 288290417. The next prime is 288290467. The reversal of 288290430 is 34092882.
It is a super-2 number, since 2×2882904302 = 166222744059169800, 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 23 ways as a sum of consecutive naturals, for example, 5440 + ... + 24620.
It is an arithmetic number, because the mean of its divisors is an integer number (15710058).
Almost surely, 2288290430 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 288290430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377041392).
288290430 is an abundant number, since it is smaller than the sum of its proper divisors (465792354).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
288290430 is a wasteful number, since it uses less digits than its factorization.
288290430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19361 (or 19358 counting only the distinct ones).
The product of its (nonzero) digits is 27648, while the sum is 36.
The square root of 288290430 is about 16979.1174682314. The cubic root of 288290430 is about 660.6073610184.
The spelling of 288290430 in words is "two hundred eighty-eight million, two hundred ninety thousand, four hundred thirty".
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