Base | Representation |
---|---|
bin | 10001001111100010… |
… | …010100001011111101 |
3 | 1202210021212002202012 |
4 | 101033202110023331 |
5 | 300404122433304 |
6 | 12301052541005 |
7 | 1223541440324 |
oct | 211742241375 |
9 | 52707762665 |
10 | 18514264829 |
11 | 7940902215 |
12 | 3708481765 |
13 | 199093b4b8 |
14 | c78c570bb |
15 | 7355dd16e |
hex | 44f8942fd |
18514264829 has 4 divisors (see below), whose sum is σ = 19488699840. Its totient is φ = 17539829820.
The previous prime is 18514264801. The next prime is 18514264859. The reversal of 18514264829 is 92846241581.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92846241581 = 31 ⋅2995040051.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-18514264829 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 (18514264859) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487217477 + ... + 487217514.
It is an arithmetic number, because the mean of its divisors is an integer number (4872174960).
Almost surely, 218514264829 is an apocalyptic number.
18514264829 is a gapful number since it is divisible by the number (19) formed by its first and last digit.
It is an amenable number.
18514264829 is a deficient number, since it is larger than the sum of its proper divisors (974435011).
18514264829 is an equidigital number, since it uses as much as digits as its factorization.
18514264829 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 974435010.
The product of its digits is 1105920, while the sum is 50.
The spelling of 18514264829 in words is "eighteen billion, five hundred fourteen million, two hundred sixty-four thousand, eight hundred twenty-nine".
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