Base | Representation |
---|---|
bin | 1011010001100110110000… |
… | …1100100111111100111101 |
3 | 1121220011001120121002201221 |
4 | 2310121230030213330331 |
5 | 3111103220230134312 |
6 | 42211051145233341 |
7 | 2416442316455161 |
oct | 264315414477475 |
9 | 47804046532657 |
10 | 12397090864957 |
11 | 3a4a638668a67 |
12 | 1482780792851 |
13 | 6bc06b40c236 |
14 | 30c04566cca1 |
15 | 167724223207 |
hex | b466c327f3d |
12397090864957 has 8 divisors (see below), whose sum is σ = 12699545806080. Its totient is φ = 12094640060640.
The previous prime is 12397090864943. The next prime is 12397090864967. The reversal of 12397090864957 is 75946809079321.
It is a happy number.
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 12397090864957 - 235 = 12362731126589 is a prime.
It is a super-2 number, since 2×123970908649572 (a number of 27 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 (12397090864937) 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, 5535394 + ... + 7445452.
It is an arithmetic number, because the mean of its divisors is an integer number (1587443225760).
It is a 1-persistent number, because it is pandigital, but 2⋅12397090864957 = 24794181729914 is not.
Almost surely, 212397090864957 is an apocalyptic number.
It is an amenable number.
12397090864957 is a deficient number, since it is larger than the sum of its proper divisors (302454941123).
12397090864957 is a wasteful number, since it uses less digits than its factorization.
12397090864957 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2068403.
The product of its (nonzero) digits is 205752960, while the sum is 70.
The spelling of 12397090864957 in words is "twelve trillion, three hundred ninety-seven billion, ninety million, eight hundred sixty-four thousand, nine hundred fifty-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.074 sec. • engine limits •