Base | Representation |
---|---|
bin | 1110101010010… |
… | …11110010100011 |
3 | 22120102201210221 |
4 | 13111023302203 |
5 | 222441300302 |
6 | 20112103511 |
7 | 3022300405 |
oct | 725136243 |
9 | 276381727 |
10 | 122993827 |
11 | 634770a0 |
12 | 35234b97 |
13 | 1c634818 |
14 | 12498b75 |
15 | abe7937 |
hex | 754bca3 |
122993827 has 12 divisors (see below), whose sum is σ = 142243128. Its totient is φ = 105105600.
The previous prime is 122993813. The next prime is 122993863. The reversal of 122993827 is 728399221.
It is not a de Polignac number, because 122993827 - 211 = 122991779 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (122994827) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151252 + ... + 152062.
It is an arithmetic number, because the mean of its divisors is an integer number (11853594).
Almost surely, 2122993827 is an apocalyptic number.
122993827 is a gapful number since it is divisible by the number (17) formed by its first and last digit.
122993827 is a deficient number, since it is larger than the sum of its proper divisors (19249301).
122993827 is an frugal number, since it uses more digits than its factorization.
122993827 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1650 (or 839 counting only the distinct ones).
The product of its digits is 108864, while the sum is 43.
The square root of 122993827 is about 11090.2582025848. The cubic root of 122993827 is about 497.3106635398.
The spelling of 122993827 in words is "one hundred twenty-two million, nine hundred ninety-three thousand, eight hundred twenty-seven".
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