Base | Representation |
---|---|
bin | 1111101100001… |
… | …00010101000101 |
3 | 100011122200111101 |
4 | 13312010111011 |
5 | 232143122041 |
6 | 21020540101 |
7 | 3155462230 |
oct | 766042505 |
9 | 304580441 |
10 | 131614021 |
11 | 68324620 |
12 | 380b1631 |
13 | 21362326 |
14 | 136a0417 |
15 | b84bb31 |
hex | 7d84545 |
131614021 has 16 divisors (see below), whose sum is σ = 164361600. Its totient is φ = 102386880.
The previous prime is 131614019. The next prime is 131614031. The reversal of 131614021 is 120416131.
It is a cyclic number.
It is not a de Polignac number, because 131614021 - 21 = 131614019 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 131614021.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131614031) by changing a digit.
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, 66555 + ... + 68503.
It is an arithmetic number, because the mean of its divisors is an integer number (10272600).
Almost surely, 2131614021 is an apocalyptic number.
131614021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
131614021 is a deficient number, since it is larger than the sum of its proper divisors (32747579).
131614021 is a wasteful number, since it uses less digits than its factorization.
131614021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2844.
The product of its (nonzero) digits is 144, while the sum is 19.
The square root of 131614021 is about 11472.3154158173. The cubic root of 131614021 is about 508.6675728070.
The spelling of 131614021 in words is "one hundred thirty-one million, six hundred fourteen thousand, twenty-one".
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