Base | Representation |
---|---|
bin | 1010111010100011111111… |
… | …1000100010111101000100 |
3 | 1120111022012222200110002200 |
4 | 2232220333320202331010 |
5 | 3033111434331202433 |
6 | 41305140245234500 |
7 | 2346026116240005 |
oct | 256507770427504 |
9 | 46438188613080 |
10 | 12001210412868 |
11 | 3907759452a16 |
12 | 1419ab9102a30 |
13 | 69092b3bb811 |
14 | 2d6c0c65d1ac |
15 | 15c2a4316613 |
hex | aea3fe22f44 |
12001210412868 has 144 divisors (see below), whose sum is σ = 30665048686272. Its totient is φ = 3957276960000.
The previous prime is 12001210412857. The next prime is 12001210412881. The reversal of 12001210412868 is 86821401210021.
12001210412868 is a `hidden beast` number, since 1 + 20 + 0 + 1 + 210 + 412 + 8 + 6 + 8 = 666.
It is a super-2 number, since 2×120012104128682 (a number of 27 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2828470755 + ... + 2828474997.
It is an arithmetic number, because the mean of its divisors is an integer number (212951726988).
Almost surely, 212001210412868 is an apocalyptic number.
12001210412868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
12001210412868 is an abundant number, since it is smaller than the sum of its proper divisors (18663838273404).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12001210412868 is a wasteful number, since it uses less digits than its factorization.
12001210412868 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6146 (or 6141 counting only the distinct ones).
The product of its (nonzero) digits is 12288, while the sum is 36.
Adding to 12001210412868 its reverse (86821401210021), we get a palindrome (98822611622889).
The spelling of 12001210412868 in words is "twelve trillion, one billion, two hundred ten million, four hundred twelve thousand, eight hundred sixty-eight".
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