Base | Representation |
---|---|
bin | 101010000000100010… |
… | …0010001110110000110 |
3 | 22121212001012012101211 |
4 | 1110001010101312012 |
5 | 2434223311241402 |
6 | 105235400442034 |
7 | 6342354102505 |
oct | 1240104216606 |
9 | 277761165354 |
10 | 90212212102 |
11 | 352934951a1 |
12 | 15597a7931a |
13 | 8678a93c7c |
14 | 451b17c83c |
15 | 252ece94d7 |
hex | 1501111d86 |
90212212102 has 32 divisors (see below), whose sum is σ = 138038401152. Its totient is φ = 44210893824.
The previous prime is 90212212099. The next prime is 90212212117. The reversal of 90212212102 is 20121221209.
It is a congruent number.
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 15 ways as a sum of consecutive naturals, for example, 7912518 + ... + 7923910.
It is an arithmetic number, because the mean of its divisors is an integer number (4313700036).
Almost surely, 290212212102 is an apocalyptic number.
90212212102 is a deficient number, since it is larger than the sum of its proper divisors (47826189050).
90212212102 is a wasteful number, since it uses less digits than its factorization.
90212212102 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11892.
The product of its (nonzero) digits is 288, while the sum is 22.
The spelling of 90212212102 in words is "ninety billion, two hundred twelve million, two hundred twelve thousand, one hundred two".
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