Base | Representation |
---|---|
bin | 10111010100100100… |
… | …00100111111111001 |
3 | 1012022120121110000020 |
4 | 23222102010333321 |
5 | 201120224322301 |
6 | 5430222401053 |
7 | 622161565326 |
oct | 135222047771 |
9 | 35276543006 |
10 | 12520542201 |
11 | 5345579742 |
12 | 2515130189 |
13 | 1246c5ca6b |
14 | 86abddb4d |
15 | 4d42e5436 |
hex | 2ea484ff9 |
12520542201 has 8 divisors (see below), whose sum is σ = 16728910080. Its totient is φ = 8329601232.
The previous prime is 12520542193. The next prime is 12520542241. The reversal of 12520542201 is 10224502521.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12520542201 - 23 = 12520542193 is a prime.
It is a super-5 number, since 5×125205422015 (a number of 52 digits) contains 55555 as substring. Note that it is a super-d number also for d = 3.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (12520542241) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4355050 + ... + 4357923.
It is an arithmetic number, because the mean of its divisors is an integer number (2091113760).
Almost surely, 212520542201 is an apocalyptic number.
It is an amenable number.
12520542201 is a deficient number, since it is larger than the sum of its proper divisors (4208367879).
12520542201 is an equidigital number, since it uses as much as digits as its factorization.
12520542201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8713455.
The product of its (nonzero) digits is 1600, while the sum is 24.
The spelling of 12520542201 in words is "twelve billion, five hundred twenty million, five hundred forty-two thousand, two hundred one".
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