Base | Representation |
---|---|
bin | 10011001101111… |
… | …01111011100011 |
3 | 102020100022122211 |
4 | 21212331323203 |
5 | 312232210313 |
6 | 23555142551 |
7 | 3665156146 |
oct | 1146757343 |
9 | 366308584 |
10 | 161210083 |
11 | 82aa9581 |
12 | 45ba4a57 |
13 | 275254a8 |
14 | 175a605d |
15 | e245e3d |
hex | 99bdee3 |
161210083 has 2 divisors, whose sum is σ = 161210084. Its totient is φ = 161210082.
The previous prime is 161210081. The next prime is 161210087. The reversal of 161210083 is 380012161.
It is a weak prime.
It is an emirp because it is prime and its reverse (380012161) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 161210083 - 21 = 161210081 is a prime.
Together with 161210081, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (161210081) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80605041 + 80605042.
It is an arithmetic number, because the mean of its divisors is an integer number (80605042).
Almost surely, 2161210083 is an apocalyptic number.
161210083 is a deficient number, since it is larger than the sum of its proper divisors (1).
161210083 is an equidigital number, since it uses as much as digits as its factorization.
161210083 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 288, while the sum is 22.
The square root of 161210083 is about 12696.8532715787. The cubic root of 161210083 is about 544.2487002173.
The spelling of 161210083 in words is "one hundred sixty-one million, two hundred ten thousand, eighty-three".
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