Base | Representation |
---|---|
bin | 1011100101000011011010… |
… | …1111101001110110111001 |
3 | 1200002002110022202022101211 |
4 | 2321100312233221312321 |
5 | 3132042000042332400 |
6 | 43024344440243121 |
7 | 2452541020313506 |
oct | 271206657516671 |
9 | 50062408668354 |
10 | 12731201527225 |
11 | 40692aa3a6735 |
12 | 15174857704a1 |
13 | 71471612c26c |
14 | 32029cb384ad |
15 | 17127b33edba |
hex | b9436be9db9 |
12731201527225 has 36 divisors (see below), whose sum is σ = 16662336360300. Its totient is φ = 9648309744000.
The previous prime is 12731201527207. The next prime is 12731201527249. The reversal of 12731201527225 is 52272510213721.
It can be written as a sum of positive squares in 6 ways, for example, as 2777252247081 + 9953949280144 = 1666509^2 + 3154988^2 .
It is not a de Polignac number, because 12731201527225 - 219 = 12731201002937 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 190836375 + ... + 190903075.
It is an arithmetic number, because the mean of its divisors is an integer number (462842676675).
Almost surely, 212731201527225 is an apocalyptic number.
It is an amenable number.
12731201527225 is a deficient number, since it is larger than the sum of its proper divisors (3931134833075).
12731201527225 is a wasteful number, since it uses less digits than its factorization.
12731201527225 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 87898 (or 87874 counting only the distinct ones).
The product of its (nonzero) digits is 117600, while the sum is 40.
The spelling of 12731201527225 in words is "twelve trillion, seven hundred thirty-one billion, two hundred one million, five hundred twenty-seven thousand, two hundred twenty-five".
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