Base | Representation |
---|---|
bin | 1110100011110… |
… | …01101000100111 |
3 | 22111211000000121 |
4 | 13101321220213 |
5 | 222231224111 |
6 | 20041422411 |
7 | 3012053656 |
oct | 721715047 |
9 | 274730017 |
10 | 122133031 |
11 | 62a39399 |
12 | 34a9aa07 |
13 | 1c3c2a87 |
14 | 1231319d |
15 | aac7871 |
hex | 7479a27 |
122133031 has 4 divisors (see below), whose sum is σ = 122157000. Its totient is φ = 122109064.
The previous prime is 122133019. The next prime is 122133047. The reversal of 122133031 is 130331221.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130331221 = 71 ⋅1835651.
It is a cyclic number.
It is not a de Polignac number, because 122133031 - 219 = 121608743 is a prime.
It is a super-2 number, since 2×1221330312 = 29832954522493922, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 122132996 and 122133014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (122133071) 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, 961 + ... + 15658.
It is an arithmetic number, because the mean of its divisors is an integer number (30539250).
Almost surely, 2122133031 is an apocalyptic number.
122133031 is a deficient number, since it is larger than the sum of its proper divisors (23969).
122133031 is an equidigital number, since it uses as much as digits as its factorization.
122133031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23968.
The product of its (nonzero) digits is 108, while the sum is 16.
The square root of 122133031 is about 11051.3814068649. The cubic root of 122133031 is about 496.1477715598.
Adding to 122133031 its reverse (130331221), we get a palindrome (252464252).
The spelling of 122133031 in words is "one hundred twenty-two million, one hundred thirty-three thousand, thirty-one".
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