Base | Representation |
---|---|
bin | 111000110100010101… |
… | …0010101100100010110 |
3 | 102122221102202212212211 |
4 | 1301220222111210112 |
5 | 3444341320410032 |
6 | 132015233104034 |
7 | 11546434333201 |
oct | 1615052254426 |
9 | 378842685784 |
10 | 122015013142 |
11 | 47823326340 |
12 | 1b7926b801a |
13 | b6767ba039 |
14 | 5c96bcc938 |
15 | 3291d31747 |
hex | 1c68a95916 |
122015013142 has 8 divisors (see below), whose sum is σ = 199660930632. Its totient is φ = 55461369600.
The previous prime is 122015013139. The next prime is 122015013149. The reversal of 122015013142 is 241310510221.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 5546136961 = 122015013142 / (1 + 2 + 2 + 0 + 1 + 5 + 0 + 1 + 3 + 1 + 4 + 2).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (122015013149) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2773068459 + ... + 2773068502.
It is an arithmetic number, because the mean of its divisors is an integer number (24957616329).
Almost surely, 2122015013142 is an apocalyptic number.
122015013142 is a deficient number, since it is larger than the sum of its proper divisors (77645917490).
122015013142 is a wasteful number, since it uses less digits than its factorization.
122015013142 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5546136974.
The product of its (nonzero) digits is 480, while the sum is 22.
Adding to 122015013142 its reverse (241310510221), we get a palindrome (363325523363).
The spelling of 122015013142 in words is "one hundred twenty-two billion, fifteen million, thirteen thousand, one hundred forty-two".
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