Base | Representation |
---|---|
bin | 101001111100101011… |
… | …1101100110101110110 |
3 | 22121112001012220020222 |
4 | 1103321113230311312 |
5 | 2433442232220221 |
6 | 105214505054342 |
7 | 6336225410606 |
oct | 1237127546566 |
9 | 277461186228 |
10 | 90083085686 |
11 | 3522760a650 |
12 | 155607873b2 |
13 | 86580c2cc9 |
14 | 4507d68c06 |
15 | 25237de9ab |
hex | 14f95ecd76 |
90083085686 has 32 divisors (see below), whose sum is σ = 151020114336. Its totient is φ = 39952224000.
The previous prime is 90083085661. The next prime is 90083085707. The reversal of 90083085686 is 68658038009.
It is a happy number.
It is a super-2 number, since 2×900830856862 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (53).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2375 + ... + 424466.
It is an arithmetic number, because the mean of its divisors is an integer number (4719378573).
Almost surely, 290083085686 is an apocalyptic number.
90083085686 is a deficient number, since it is larger than the sum of its proper divisors (60937028650).
90083085686 is a wasteful number, since it uses less digits than its factorization.
90083085686 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 427088.
The product of its (nonzero) digits is 2488320, while the sum is 53.
The spelling of 90083085686 in words is "ninety billion, eighty-three million, eighty-five thousand, six hundred eighty-six".
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