Base | Representation |
---|---|
bin | 1010001100010… |
… | …1010000100000 |
3 | 2222102222100200 |
4 | 2203011100200 |
5 | 41421013013 |
6 | 4124145200 |
7 | 1026243336 |
oct | 243052040 |
9 | 88388320 |
10 | 42751008 |
11 | 2214a513 |
12 | 12398200 |
13 | 8b1aa71 |
14 | 596bb56 |
15 | 3b46e73 |
hex | 28c5420 |
42751008 has 72 divisors (see below), whose sum is σ = 123177600. Its totient is φ = 14062464.
The previous prime is 42751003. The next prime is 42751013. The reversal of 42751008 is 80015724.
It is an interprime number because it is at equal distance from previous prime (42751003) and next prime (42751013).
It is a tau number, because it is divible by the number of its divisors (72).
It is not an unprimeable number, because it can be changed into a prime (42751001) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21813 + ... + 23691.
It is an arithmetic number, because the mean of its divisors is an integer number (1710800).
Almost surely, 242751008 is an apocalyptic number.
42751008 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 42751008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61588800).
42751008 is an abundant number, since it is smaller than the sum of its proper divisors (80426592).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42751008 is a wasteful number, since it uses less digits than its factorization.
42751008 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1974 (or 1963 counting only the distinct ones).
The product of its (nonzero) digits is 2240, while the sum is 27.
The square root of 42751008 is about 6538.4254985432. The cubic root of 42751008 is about 349.6622810387.
The spelling of 42751008 in words is "forty-two million, seven hundred fifty-one thousand, eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •