Base | Representation |
---|---|
bin | 1110011111110… |
… | …11000110010011 |
3 | 22110211200001121 |
4 | 13033323012103 |
5 | 222113132424 |
6 | 20022343111 |
7 | 3004464631 |
oct | 717730623 |
9 | 273750047 |
10 | 121614739 |
11 | 62714a54 |
12 | 3488aa97 |
13 | 1c270bac |
14 | 1221a351 |
15 | aa23ee4 |
hex | 73fb193 |
121614739 has 4 divisors (see below), whose sum is σ = 121875624. Its totient is φ = 121353856.
The previous prime is 121614737. The next prime is 121614761. The reversal of 121614739 is 937416121.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 937416121 = 617 ⋅1519313.
It is a cyclic number.
It is not a de Polignac number, because 121614739 - 21 = 121614737 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (121614737) 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, 129742 + ... + 130675.
It is an arithmetic number, because the mean of its divisors is an integer number (30468906).
Almost surely, 2121614739 is an apocalyptic number.
121614739 is a deficient number, since it is larger than the sum of its proper divisors (260885).
121614739 is an equidigital number, since it uses as much as digits as its factorization.
121614739 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 260884.
The product of its digits is 9072, while the sum is 34.
The square root of 121614739 is about 11027.9072810756. The cubic root of 121614739 is about 495.4449476774. Note that the first 3 decimals are identical.
It can be divided in two parts, 12161 and 4739, that added together give a square (16900 = 1302).
The spelling of 121614739 in words is "one hundred twenty-one million, six hundred fourteen thousand, seven hundred thirty-nine".
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