Base | Representation |
---|---|
bin | 1010001100111… |
… | …0100000110010 |
3 | 2222111220100121 |
4 | 2203032200302 |
5 | 41423221124 |
6 | 4125040454 |
7 | 1026462010 |
oct | 243164062 |
9 | 88456317 |
10 | 42788914 |
11 | 22175a43 |
12 | 123b612a |
13 | 8b320ac |
14 | 597b8b0 |
15 | 3b532e4 |
hex | 28ce832 |
42788914 has 16 divisors (see below), whose sum is σ = 74737728. Its totient is φ = 17991792.
The previous prime is 42788899. The next prime is 42788971. The reversal of 42788914 is 41988724.
It is a super-3 number, since 3×427889143 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28092 + ... + 29575.
It is an arithmetic number, because the mean of its divisors is an integer number (4671108).
Almost surely, 242788914 is an apocalyptic number.
42788914 is a deficient number, since it is larger than the sum of its proper divisors (31948814).
42788914 is a wasteful number, since it uses less digits than its factorization.
42788914 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 57729.
The product of its digits is 129024, while the sum is 43.
The square root of 42788914 is about 6541.3235663740. The cubic root of 42788914 is about 349.7655954288.
The spelling of 42788914 in words is "forty-two million, seven hundred eighty-eight thousand, nine hundred fourteen".
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