Base | Representation |
---|---|
bin | 111000111111101… |
… | …1111110110010001 |
3 | 11221021122120220122 |
4 | 1301333133312101 |
5 | 12404043032204 |
6 | 513434520025 |
7 | 65251506665 |
oct | 16177376621 |
9 | 4837576818 |
10 | 1912470929 |
11 | 8a15a3796 |
12 | 454596015 |
13 | 2462ac005 |
14 | 141dd28a5 |
15 | b2d730be |
hex | 71fdfd91 |
1912470929 has 4 divisors (see below), whose sum is σ = 1918700784. Its totient is φ = 1906241076.
The previous prime is 1912470877. The next prime is 1912470949. The reversal of 1912470929 is 9290742191.
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.
It is a cyclic number.
It is not a de Polignac number, because 1912470929 - 28 = 1912470673 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 1912470929.
It is not an unprimeable number, because it can be changed into a prime (1912470949) 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, 3114467 + ... + 3115080.
It is an arithmetic number, because the mean of its divisors is an integer number (479675196).
Almost surely, 21912470929 is an apocalyptic number.
It is an amenable number.
1912470929 is a deficient number, since it is larger than the sum of its proper divisors (6229855).
1912470929 is an equidigital number, since it uses as much as digits as its factorization.
1912470929 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6229854.
The product of its (nonzero) digits is 81648, while the sum is 44.
The square root of 1912470929 is about 43731.8068343854. The cubic root of 1912470929 is about 1241.2662509438.
The spelling of 1912470929 in words is "one billion, nine hundred twelve million, four hundred seventy thousand, nine hundred twenty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •