Base | Representation |
---|---|
bin | 1010101110110… |
… | …10000010001110 |
3 | 20021101121000021 |
4 | 11113122002032 |
5 | 141021201110 |
6 | 12533252354 |
7 | 2142113620 |
oct | 527320216 |
9 | 207347007 |
10 | 90022030 |
11 | 468a697a |
12 | 261940ba |
13 | 1585bc97 |
14 | bd54c10 |
15 | 7d832da |
hex | 55da08e |
90022030 has 32 divisors (see below), whose sum is σ = 185670144. Its totient is φ = 30784416.
The previous prime is 90022013. The next prime is 90022039. The reversal of 90022030 is 3022009.
It is a junction number, because it is equal to n+sod(n) for n = 90021995 and 90022013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (90022039) by changing a digit.
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 15 ways as a sum of consecutive naturals, for example, 29559 + ... + 32461.
It is an arithmetic number, because the mean of its divisors is an integer number (5802192).
Almost surely, 290022030 is an apocalyptic number.
90022030 is an abundant number, since it is smaller than the sum of its proper divisors (95648114).
90022030 is a wasteful number, since it uses less digits than its factorization.
90022030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3360.
The product of its (nonzero) digits is 108, while the sum is 16.
The square root of 90022030 is about 9487.9939924096. The cubic root of 90022030 is about 448.1770366159.
Adding to 90022030 its reverse (3022009), we get a palindrome (93044039).
The spelling of 90022030 in words is "ninety million, twenty-two thousand, thirty".
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