Base | Representation |
---|---|
bin | 111000101000101010… |
… | …0000101111111110111 |
3 | 102121221010201010000110 |
4 | 1301101110011333313 |
5 | 3443041031244411 |
6 | 131512321314103 |
7 | 11533640021430 |
oct | 1612124057767 |
9 | 377833633013 |
10 | 121623306231 |
11 | 47642205119 |
12 | 1b6a3495933 |
13 | b6135c03bb |
14 | 5c5ab86487 |
15 | 326c75a2a6 |
hex | 1c51505ff7 |
121623306231 has 8 divisors (see below), whose sum is σ = 185330752384. Its totient is φ = 69499032120.
The previous prime is 121623306187. The next prime is 121623306253. The reversal of 121623306231 is 132603326121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 121623306231 - 29 = 121623305719 is a prime.
It is a super-2 number, since 2×1216233062312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121623306271) 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, 2895792985 + ... + 2895793026.
It is an arithmetic number, because the mean of its divisors is an integer number (23166344048).
Almost surely, 2121623306231 is an apocalyptic number.
121623306231 is a deficient number, since it is larger than the sum of its proper divisors (63707446153).
121623306231 is an equidigital number, since it uses as much as digits as its factorization.
121623306231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5791586021.
The product of its (nonzero) digits is 7776, while the sum is 30.
The spelling of 121623306231 in words is "one hundred twenty-one billion, six hundred twenty-three million, three hundred six thousand, two hundred thirty-one".
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