Base | Representation |
---|---|
bin | 111000111101001100… |
… | …0111001001101010101 |
3 | 102200201011102020200121 |
4 | 1301322120321031111 |
5 | 4000443440233141 |
6 | 132104535511541 |
7 | 11560005335026 |
oct | 1617230711525 |
9 | 380634366617 |
10 | 122312430421 |
11 | 479661a6345 |
12 | 1b8562285b1 |
13 | b6c32c23ac |
14 | 5cc44ccc4d |
15 | 32aced01d1 |
hex | 1c7a639355 |
122312430421 has 8 divisors (see below), whose sum is σ = 124881341760. Its totient is φ = 119765382528.
The previous prime is 122312430407. The next prime is 122312430437. The reversal of 122312430421 is 124034213221.
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 122312430421 - 27 = 122312430293 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (122312430481) 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, 5454556 + ... + 5476933.
It is an arithmetic number, because the mean of its divisors is an integer number (15610167720).
Almost surely, 2122312430421 is an apocalyptic number.
It is an amenable number.
122312430421 is a deficient number, since it is larger than the sum of its proper divisors (2568911339).
122312430421 is a wasteful number, since it uses less digits than its factorization.
122312430421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10931723.
The product of its (nonzero) digits is 2304, while the sum is 25.
Adding to 122312430421 its reverse (124034213221), we get a palindrome (246346643642).
The spelling of 122312430421 in words is "one hundred twenty-two billion, three hundred twelve million, four hundred thirty thousand, four hundred twenty-one".
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