Base | Representation |
---|---|
bin | 1010001000010… |
… | …0111011000000 |
3 | 2221221120212200 |
4 | 2202010323000 |
5 | 41334044423 |
6 | 4114353200 |
7 | 1024065141 |
oct | 242047300 |
9 | 87846780 |
10 | 42487488 |
11 | 21a8a52a |
12 | 1228b800 |
13 | 8a57b34 |
14 | 58ddac8 |
15 | 3ae3d43 |
hex | 2884ec0 |
42487488 has 84 divisors (see below), whose sum is σ = 128976120. Its totient is φ = 13326336.
The previous prime is 42487441. The next prime is 42487513. The reversal of 42487488 is 88478424.
It is a happy number.
It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7623 + ... + 11961.
It is an arithmetic number, because the mean of its divisors is an integer number (1535430).
Almost surely, 242487488 is an apocalyptic number.
42487488 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 42487488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64488060).
42487488 is an abundant number, since it is smaller than the sum of its proper divisors (86488632).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42487488 is a wasteful number, since it uses less digits than its factorization.
42487488 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4374 (or 4361 counting only the distinct ones).
The product of its digits is 458752, while the sum is 45.
The square root of 42487488 is about 6518.2427079697. The cubic root of 42487488 is about 348.9423527470.
The spelling of 42487488 in words is "forty-two million, four hundred eighty-seven thousand, four hundred eighty-eight".
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