Base | Representation |
---|---|
bin | 1110011011010… |
… | …00001100010101 |
3 | 22102201002122110 |
4 | 13031220030111 |
5 | 221434404023 |
6 | 20001421233 |
7 | 2666410422 |
oct | 715501425 |
9 | 272632573 |
10 | 121013013 |
11 | 62343960 |
12 | 3463a819 |
13 | 1c0c0044 |
14 | 12100d49 |
15 | a955a93 |
hex | 7368315 |
121013013 has 8 divisors (see below), whose sum is σ = 176018976. Its totient is φ = 73341200.
The previous prime is 121013003. The next prime is 121013047. The reversal of 121013013 is 310310121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-121013013 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 121013013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121013003) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1833498 + ... + 1833563.
It is an arithmetic number, because the mean of its divisors is an integer number (22002372).
Almost surely, 2121013013 is an apocalyptic number.
It is an amenable number.
121013013 is a deficient number, since it is larger than the sum of its proper divisors (55005963).
121013013 is a wasteful number, since it uses less digits than its factorization.
121013013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3667075.
The product of its (nonzero) digits is 18, while the sum is 12.
The square root of 121013013 is about 11000.5914840976. The cubic root of 121013013 is about 494.6264746634.
Adding to 121013013 its reverse (310310121), we get a palindrome (431323134).
The spelling of 121013013 in words is "one hundred twenty-one million, thirteen thousand, thirteen".
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