Base | Representation |
---|---|
bin | 1010001100001… |
… | …1110000011000 |
3 | 2222102122220211 |
4 | 2203003300120 |
5 | 41420313411 |
6 | 4124100504 |
7 | 1026216400 |
oct | 243036030 |
9 | 88378824 |
10 | 42744856 |
11 | 22145930 |
12 | 12394734 |
13 | 8b1801b |
14 | 5969800 |
15 | 3b45221 |
hex | 28c3c18 |
42744856 has 96 divisors (see below), whose sum is σ = 106375680. Its totient is φ = 15892800.
The previous prime is 42744853. The next prime is 42744859. The reversal of 42744856 is 65844724.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (42744853) and next prime (42744859).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (42744853) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98961 + ... + 99391.
It is an arithmetic number, because the mean of its divisors is an integer number (1108080).
Almost surely, 242744856 is an apocalyptic number.
42744856 is a gapful number since it is divisible by the number (46) 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 42744856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53187840).
42744856 is an abundant number, since it is smaller than the sum of its proper divisors (63630824).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42744856 is a wasteful number, since it uses less digits than its factorization.
42744856 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 485 (or 474 counting only the distinct ones).
The product of its digits is 215040, while the sum is 40.
The square root of 42744856 is about 6537.9550319653. The cubic root of 42744856 is about 349.6455077457.
The spelling of 42744856 in words is "forty-two million, seven hundred forty-four thousand, eight hundred fifty-six".
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