Base | Representation |
---|---|
bin | 101010000000001010… |
… | …1101101111001000111 |
3 | 22121211012020002001221 |
4 | 1110000111231321013 |
5 | 2434212200144330 |
6 | 105234243101211 |
7 | 6342145255024 |
oct | 1240025557107 |
9 | 277735202057 |
10 | 90200006215 |
11 | 35287608790 |
12 | 15593971807 |
13 | 86763ac357 |
14 | 45196c254b |
15 | 252dbd7b7a |
hex | 150056de47 |
90200006215 has 16 divisors (see below), whose sum is σ = 118086938496. Its totient is φ = 65596154400.
The previous prime is 90200006213. The next prime is 90200006227. The reversal of 90200006215 is 51260000209.
It is not a de Polignac number, because 90200006215 - 21 = 90200006213 is a prime.
It is a super-2 number, since 2×902000062152 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 90200006215.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (90200006213) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1179700 + ... + 1253830.
It is an arithmetic number, because the mean of its divisors is an integer number (7380433656).
Almost surely, 290200006215 is an apocalyptic number.
90200006215 is a deficient number, since it is larger than the sum of its proper divisors (27886932281).
90200006215 is a wasteful number, since it uses less digits than its factorization.
90200006215 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 96270.
The product of its (nonzero) digits is 1080, while the sum is 25.
The spelling of 90200006215 in words is "ninety billion, two hundred million, six thousand, two hundred fifteen".
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