Base | Representation |
---|---|
bin | 1010110101000… |
… | …00100001110101 |
3 | 20022220220021112 |
4 | 11122200201311 |
5 | 141223210221 |
6 | 13002524405 |
7 | 2152041152 |
oct | 532404165 |
9 | 208826245 |
10 | 90835061 |
11 | 473017a9 |
12 | 26506705 |
13 | 15a85075 |
14 | c0c7229 |
15 | 7e9415b |
hex | 56a0875 |
90835061 has 4 divisors (see below), whose sum is σ = 90854124. Its totient is φ = 90816000.
The previous prime is 90835051. The next prime is 90835079. The reversal of 90835061 is 16053809.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It can be written as a sum of positive squares in 2 ways, for example, as 69388900 + 21446161 = 8330^2 + 4631^2 .
It is a cyclic number.
It is not a de Polignac number, because 90835061 - 214 = 90818677 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (90835021) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4661 + ... + 14261.
It is an arithmetic number, because the mean of its divisors is an integer number (22713531).
Almost surely, 290835061 is an apocalyptic number.
It is an amenable number.
90835061 is a deficient number, since it is larger than the sum of its proper divisors (19063).
90835061 is an equidigital number, since it uses as much as digits as its factorization.
90835061 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19062.
The product of its (nonzero) digits is 6480, while the sum is 32.
The square root of 90835061 is about 9530.7429406107. The cubic root of 90835061 is about 449.5222270760.
The spelling of 90835061 in words is "ninety million, eight hundred thirty-five thousand, sixty-one".
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