Base | Representation |
---|---|
bin | 111001000010101… |
… | …0101111010111011 |
3 | 11221101112102200212 |
4 | 1302011111322323 |
5 | 12404441100011 |
6 | 513531421335 |
7 | 65300521025 |
oct | 16205257273 |
9 | 4841472625 |
10 | 1914003131 |
11 | 8a244a977 |
12 | 454bb484b |
13 | 2466c7541 |
14 | 1422b1015 |
15 | b307708b |
hex | 72155ebb |
1914003131 has 4 divisors (see below), whose sum is σ = 1921450872. Its totient is φ = 1906555392.
The previous prime is 1914003109. The next prime is 1914003139. The reversal of 1914003131 is 1313004191.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1313004191 = 1523 ⋅862117.
It is a cyclic number.
It is not a de Polignac number, because 1914003131 - 226 = 1846894267 is a prime.
It is a super-2 number, since 2×19140031312 = 7326815970955606322, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1914003097 and 1914003106.
It is not an unprimeable number, because it can be changed into a prime (1914003139) 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, 3723485 + ... + 3723998.
It is an arithmetic number, because the mean of its divisors is an integer number (480362718).
Almost surely, 21914003131 is an apocalyptic number.
1914003131 is a deficient number, since it is larger than the sum of its proper divisors (7447741).
1914003131 is an equidigital number, since it uses as much as digits as its factorization.
1914003131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7447740.
The product of its (nonzero) digits is 324, while the sum is 23.
The square root of 1914003131 is about 43749.3214918814. The cubic root of 1914003131 is about 1241.5976482174.
The spelling of 1914003131 in words is "one billion, nine hundred fourteen million, three thousand, one hundred thirty-one".
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