Base | Representation |
---|---|
bin | 10110110001111111… |
… | …10110101010011101 |
3 | 1011120100221102112121 |
4 | 23120333312222131 |
5 | 200022010132341 |
6 | 5341343102541 |
7 | 612040656436 |
oct | 133077665235 |
9 | 34510842477 |
10 | 12230552221 |
11 | 52069119a8 |
12 | 2453ba1a51 |
13 | 11cbb58264 |
14 | 8404b448d |
15 | 4b8b124d1 |
hex | 2d8ff6a9d |
12230552221 has 8 divisors (see below), whose sum is σ = 12535294464. Its totient is φ = 11926733280.
The previous prime is 12230552179. The next prime is 12230552227. The reversal of 12230552221 is 12225503221.
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 12230552221 - 29 = 12230551709 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 (12230552227) 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, 203965 + ... + 257026.
It is an arithmetic number, because the mean of its divisors is an integer number (1566911808).
Almost surely, 212230552221 is an apocalyptic number.
It is an amenable number.
12230552221 is a deficient number, since it is larger than the sum of its proper divisors (304742243).
12230552221 is an equidigital number, since it uses as much as digits as its factorization.
12230552221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 461651.
The product of its (nonzero) digits is 2400, while the sum is 25.
The spelling of 12230552221 in words is "twelve billion, two hundred thirty million, five hundred fifty-two thousand, two hundred twenty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •