Base | Representation |
---|---|
bin | 1001101110001… |
… | …1110010001010 |
3 | 2211201210010021 |
4 | 2123203302022 |
5 | 40414411030 |
6 | 4014011054 |
7 | 1003420615 |
oct | 233436212 |
9 | 84653107 |
10 | 40778890 |
11 | 21022869 |
12 | 117a6a8a |
13 | 85aa229 |
14 | 55b717c |
15 | 38a797a |
hex | 26e3c8a |
40778890 has 16 divisors (see below), whose sum is σ = 73537632. Its totient is φ = 16281424.
The previous prime is 40778873. The next prime is 40778923. The reversal of 40778890 is 9887704.
40778890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2397 + ... + 9343.
It is an arithmetic number, because the mean of its divisors is an integer number (4596102).
Almost surely, 240778890 is an apocalyptic number.
40778890 is a deficient number, since it is larger than the sum of its proper divisors (32758742).
40778890 is a wasteful number, since it uses less digits than its factorization.
40778890 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7541.
The product of its (nonzero) digits is 112896, while the sum is 43.
The square root of 40778890 is about 6385.8351059200. The cubic root of 40778890 is about 344.2007402812.
It can be divided in two parts, 407 and 78890, that added together give a palindrome (79297).
The spelling of 40778890 in words is "forty million, seven hundred seventy-eight thousand, eight hundred ninety".
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