Base | Representation |
---|---|
bin | 1010001111001… |
… | …1111101010000 |
3 | 2222210200202010 |
4 | 2203303331100 |
5 | 41443123123 |
6 | 4132222520 |
7 | 1031001114 |
oct | 243637520 |
9 | 88720663 |
10 | 42942288 |
11 | 222701a4 |
12 | 1246aa40 |
13 | 8b86b4c |
14 | 59bb744 |
15 | 3b83993 |
hex | 28f3f50 |
42942288 has 80 divisors (see below), whose sum is σ = 117242496. Its totient is φ = 13516800.
The previous prime is 42942283. The next prime is 42942313. The reversal of 42942288 is 88224924.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (42942283) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106888 + ... + 107288.
Almost surely, 242942288 is an apocalyptic number.
42942288 is a gapful number since it is divisible by the number (48) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 42942288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58621248).
42942288 is an abundant number, since it is smaller than the sum of its proper divisors (74300208).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42942288 is a wasteful number, since it uses less digits than its factorization.
42942288 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 532 (or 526 counting only the distinct ones).
The product of its digits is 73728, while the sum is 39.
The square root of 42942288 is about 6553.0365480440. The cubic root of 42942288 is about 350.1830008982.
The spelling of 42942288 in words is "forty-two million, nine hundred forty-two thousand, two hundred eighty-eight".
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