Base | Representation |
---|---|
bin | 11000000001110100… |
… | …00101010000101110 |
3 | 1020022000212101112202 |
4 | 30000322011100232 |
5 | 202404413042130 |
6 | 5532022301502 |
7 | 634451164004 |
oct | 140072052056 |
9 | 36260771482 |
10 | 12900127790 |
11 | 551a870a40 |
12 | 2600287892 |
13 | 12a77a4414 |
14 | 8a53aca74 |
15 | 5077c5145 |
hex | 300e8542e |
12900127790 has 32 divisors (see below), whose sum is σ = 25338259296. Its totient is φ = 4689640960.
The previous prime is 12900127781. The next prime is 12900127813. The reversal of 12900127790 is 9772100921.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433634 + ... + 462426.
It is an arithmetic number, because the mean of its divisors is an integer number (791820603).
Almost surely, 212900127790 is an apocalyptic number.
12900127790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12900127790 is a deficient number, since it is larger than the sum of its proper divisors (12438131506).
12900127790 is a wasteful number, since it uses less digits than its factorization.
12900127790 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32884.
The product of its (nonzero) digits is 15876, while the sum is 38.
The spelling of 12900127790 in words is "twelve billion, nine hundred million, one hundred twenty-seven thousand, seven hundred ninety".
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