Base | Representation |
---|---|
bin | 1110100110000… |
… | …10001010111111 |
3 | 22112101002120202 |
4 | 13103002022333 |
5 | 222320231033 |
6 | 20052034115 |
7 | 3014432123 |
oct | 723021277 |
9 | 275332522 |
10 | 122430143 |
11 | 63121640 |
12 | 3500293b |
13 | 1c498094 |
14 | 1238d583 |
15 | ab358e8 |
hex | 74c22bf |
122430143 has 8 divisors (see below), whose sum is σ = 133643136. Its totient is φ = 111231000.
The previous prime is 122430137. The next prime is 122430157. The reversal of 122430143 is 341034221.
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 122430143 - 210 = 122429119 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (122430193) 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, 25880 + ... + 30242.
It is an arithmetic number, because the mean of its divisors is an integer number (16705392).
Almost surely, 2122430143 is an apocalyptic number.
122430143 is a deficient number, since it is larger than the sum of its proper divisors (11212993).
122430143 is a wasteful number, since it uses less digits than its factorization.
122430143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6925.
The product of its (nonzero) digits is 576, while the sum is 20.
The square root of 122430143 is about 11064.8155429722. The cubic root of 122430143 is about 496.5497705965.
Adding to 122430143 its reverse (341034221), we get a palindrome (463464364).
The spelling of 122430143 in words is "one hundred twenty-two million, four hundred thirty thousand, one hundred forty-three".
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