Base | Representation |
---|---|
bin | 10110100111001101… |
… | …10011111100011101 |
3 | 1011100001202001100101 |
4 | 23103212303330131 |
5 | 144330331221110 |
6 | 5324352301101 |
7 | 606562105435 |
oct | 132346637435 |
9 | 34301661311 |
10 | 12140101405 |
11 | 516a852963 |
12 | 2429841791 |
13 | 11b61a9073 |
14 | 83248b2c5 |
15 | 4b0be713a |
hex | 2d39b3f1d |
12140101405 has 8 divisors (see below), whose sum is σ = 14570855352. Its totient is φ = 9710258688.
The previous prime is 12140101403. The next prime is 12140101411. The reversal of 12140101405 is 50410104121.
It can be written as a sum of positive squares in 4 ways, for example, as 6080724441 + 6059376964 = 77979^2 + 77842^2 .
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 12140101405 - 21 = 12140101403 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12140101403) 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, 198144 + ... + 252073.
It is an arithmetic number, because the mean of its divisors is an integer number (1821356919).
Almost surely, 212140101405 is an apocalyptic number.
It is an amenable number.
12140101405 is a deficient number, since it is larger than the sum of its proper divisors (2430753947).
12140101405 is an equidigital number, since it uses as much as digits as its factorization.
12140101405 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 455615.
The product of its (nonzero) digits is 160, while the sum is 19.
Adding to 12140101405 its reverse (50410104121), we get a palindrome (62550205526).
The spelling of 12140101405 in words is "twelve billion, one hundred forty million, one hundred one thousand, four hundred five".
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