Base | Representation |
---|---|
bin | 10110101111001100… |
… | …01000001111010010 |
3 | 1011111201200102211112 |
4 | 23113212020033102 |
5 | 200000000000000 |
6 | 5335143013322 |
7 | 611334024251 |
oct | 132746101722 |
9 | 34451612745 |
10 | 12207031250 |
11 | 51a4607287 |
12 | 244813a242 |
13 | 11c701131b |
14 | 83b310798 |
15 | 4b6a18235 |
hex | 2d79883d2 |
12207031250 has 30 divisors (see below), whose sum is σ = 22888183593. Its totient is φ = 4882812500.
The previous prime is 12207031211. The next prime is 12207031259. The reversal of 12207031250 is 5213070221.
It is a happy number.
12207031250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 8 ways, for example, as 8568649489 + 3638381761 = 92567^2 + 60319^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=78125.
It is a super-2 number, since 2×122070312502 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a nialpdrome in base 5.
It is not an unprimeable number, because it can be changed into a prime (12207031259) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2441406248 + ... + 2441406252.
Almost surely, 212207031250 is an apocalyptic number.
12207031250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12207031250 is a deficient number, since it is larger than the sum of its proper divisors (10681152343).
12207031250 is an frugal number, since it uses more digits than its factorization.
12207031250 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 72 (or 7 counting only the distinct ones).
The product of its (nonzero) digits is 840, while the sum is 23.
The spelling of 12207031250 in words is "twelve billion, two hundred seven million, thirty-one thousand, two hundred fifty".
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