Base | Representation |
---|---|
bin | 1110101010010… |
… | …01001011011011 |
3 | 22120102012010210 |
4 | 13111021023123 |
5 | 222440430011 |
6 | 20111542203 |
7 | 3022224255 |
oct | 725111333 |
9 | 276365123 |
10 | 122983131 |
11 | 6346a057 |
12 | 3522a963 |
13 | 1c62c9ab |
14 | 12494cd5 |
15 | abe46a6 |
hex | 75492db |
122983131 has 4 divisors (see below), whose sum is σ = 163977512. Its totient is φ = 81988752.
The previous prime is 122983129. The next prime is 122983163. The reversal of 122983131 is 131389221.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 122983131 - 21 = 122983129 is a prime.
It is a super-2 number, since 2×1229831312 = 30249701021126322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (122983111) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20497186 + ... + 20497191.
It is an arithmetic number, because the mean of its divisors is an integer number (40994378).
Almost surely, 2122983131 is an apocalyptic number.
122983131 is a deficient number, since it is larger than the sum of its proper divisors (40994381).
122983131 is an equidigital number, since it uses as much as digits as its factorization.
122983131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 40994380.
The product of its digits is 2592, while the sum is 30.
The square root of 122983131 is about 11089.7759670789. The cubic root of 122983131 is about 497.2962471277.
The spelling of 122983131 in words is "one hundred twenty-two million, nine hundred eighty-three thousand, one hundred thirty-one".
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