Base | Representation |
---|---|
bin | 111111010010… |
… | …1110101010001 |
3 | 2022102222101222 |
4 | 1332211311101 |
5 | 31443410410 |
6 | 3143134425 |
7 | 552032402 |
oct | 176456521 |
9 | 68388358 |
10 | 33185105 |
11 | 17806508 |
12 | b144415 |
13 | 6b4b975 |
14 | 459b9a9 |
15 | 2da7955 |
hex | 1fa5d51 |
33185105 has 8 divisors (see below), whose sum is σ = 42164712. Its totient is φ = 24986368.
The previous prime is 33185101. The next prime is 33185107. The reversal of 33185105 is 50158133.
It can be written as a sum of positive squares in 4 ways, for example, as 4068289 + 29116816 = 2017^2 + 5396^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 33185105 - 22 = 33185101 is a prime.
It is a super-2 number, since 2×331851052 = 2202502387722050, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (33185101) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195122 + ... + 195291.
It is an arithmetic number, because the mean of its divisors is an integer number (5270589).
Almost surely, 233185105 is an apocalyptic number.
It is an amenable number.
33185105 is a deficient number, since it is larger than the sum of its proper divisors (8979607).
33185105 is a wasteful number, since it uses less digits than its factorization.
33185105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 390435.
The product of its (nonzero) digits is 1800, while the sum is 26.
The square root of 33185105 is about 5760.6514388565. The cubic root of 33185105 is about 321.3520430625.
The spelling of 33185105 in words is "thirty-three million, one hundred eighty-five thousand, one hundred five".
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