Base | Representation |
---|---|
bin | 1110100011110… |
… | …01001000101010 |
3 | 22111210220012212 |
4 | 13101321020222 |
5 | 222231142421 |
6 | 20041405122 |
7 | 3012045005 |
oct | 721711052 |
9 | 274726185 |
10 | 122130986 |
11 | 62a378aa |
12 | 34a997a2 |
13 | 1c3c1b73 |
14 | 1231253c |
15 | aac6e5b |
hex | 747922a |
122130986 has 8 divisors (see below), whose sum is σ = 183262500. Its totient is φ = 61043488.
The previous prime is 122130973. The next prime is 122130991. The reversal of 122130986 is 689031221.
It can be written as a sum of positive squares in 2 ways, for example, as 113316025 + 8814961 = 10645^2 + 2969^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
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 3 ways as a sum of consecutive naturals, for example, 2861 + ... + 15888.
Almost surely, 2122130986 is an apocalyptic number.
122130986 is a deficient number, since it is larger than the sum of its proper divisors (61131514).
122130986 is a wasteful number, since it uses less digits than its factorization.
122130986 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22008.
The product of its (nonzero) digits is 5184, while the sum is 32.
The square root of 122130986 is about 11051.2888841076. The cubic root of 122130986 is about 496.1450023721.
The spelling of 122130986 in words is "one hundred twenty-two million, one hundred thirty thousand, nine hundred eighty-six".
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