Base | Representation |
---|---|
bin | 1110100110110… |
… | …10100110100011 |
3 | 22112120011211222 |
4 | 13103122212203 |
5 | 222331431321 |
6 | 20054125255 |
7 | 3015326636 |
oct | 723324643 |
9 | 275504758 |
10 | 122530211 |
11 | 6318a841 |
12 | 3505082b |
13 | 1c5017ab |
14 | 123b7c1d |
15 | ab553ab |
hex | 74da9a3 |
122530211 has 8 divisors (see below), whose sum is σ = 123431424. Its totient is φ = 121632840.
The previous prime is 122530207. The next prime is 122530217. The reversal of 122530211 is 112035221.
It is a happy number.
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 122530211 - 22 = 122530207 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 122530211.
It is not an unprimeable number, because it can be changed into a prime (122530217) 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, 93386 + ... + 94688.
It is an arithmetic number, because the mean of its divisors is an integer number (15428928).
Almost surely, 2122530211 is an apocalyptic number.
122530211 is a deficient number, since it is larger than the sum of its proper divisors (901213).
122530211 is a wasteful number, since it uses less digits than its factorization.
122530211 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1921.
The product of its (nonzero) digits is 120, while the sum is 17.
The square root of 122530211 is about 11069.3365203159. The cubic root of 122530211 is about 496.6850183651.
Adding to 122530211 its reverse (112035221), we get a palindrome (234565432).
The spelling of 122530211 in words is "one hundred twenty-two million, five hundred thirty thousand, two hundred eleven".
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