Base | Representation |
---|---|
bin | 110011111011… |
… | …010000100101 |
3 | 221121120020201 |
4 | 303323100211 |
5 | 11441041234 |
6 | 1203430501 |
7 | 223462222 |
oct | 63732045 |
9 | 27546221 |
10 | 13612069 |
11 | 7757a49 |
12 | 4685431 |
13 | 2a879a3 |
14 | 1b44949 |
15 | 12dd314 |
hex | cfb425 |
13612069 has 8 divisors (see below), whose sum is σ = 14094080. Its totient is φ = 13132800.
The previous prime is 13612063. The next prime is 13612103. The reversal of 13612069 is 96021631.
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 13612069 - 29 = 13611557 is a prime.
It is a super-2 number, since 2×136120692 = 370576844921522, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13612063) 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 7 ways as a sum of consecutive naturals, for example, 17317 + ... + 18085.
It is an arithmetic number, because the mean of its divisors is an integer number (1761760).
Almost surely, 213612069 is an apocalyptic number.
It is an amenable number.
13612069 is a deficient number, since it is larger than the sum of its proper divisors (482011).
13612069 is an equidigital number, since it uses as much as digits as its factorization.
13612069 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1371.
The product of its (nonzero) digits is 1944, while the sum is 28.
The square root of 13612069 is about 3689.4537536064. The cubic root of 13612069 is about 238.7672260809.
The spelling of 13612069 in words is "thirteen million, six hundred twelve thousand, sixty-nine".
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