Base | Representation |
---|---|
bin | 101101001010… |
… | …010111111011 |
3 | 211021111000102 |
4 | 231022113323 |
5 | 11012321341 |
6 | 1101430015 |
7 | 202425644 |
oct | 55122773 |
9 | 24244012 |
10 | 11838971 |
11 | 6756881 |
12 | 3b6b30b |
13 | 25b6911 |
14 | 18026cb |
15 | 108cc9b |
hex | b4a5fb |
11838971 has 4 divisors (see below), whose sum is σ = 12090912. Its totient is φ = 11587032.
The previous prime is 11838943. The next prime is 11838977. The reversal of 11838971 is 17983811.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 11838971 - 26 = 11838907 is a prime.
It is a super-2 number, since 2×118389712 = 280322468677682, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (11838977) 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, 125900 + ... + 125993.
It is an arithmetic number, because the mean of its divisors is an integer number (3022728).
Almost surely, 211838971 is an apocalyptic number.
11838971 is a deficient number, since it is larger than the sum of its proper divisors (251941).
11838971 is an equidigital number, since it uses as much as digits as its factorization.
11838971 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 251940.
The product of its digits is 12096, while the sum is 38.
The square root of 11838971 is about 3440.7805800428. The cubic root of 11838971 is about 227.9141656486.
The spelling of 11838971 in words is "eleven million, eight hundred thirty-eight thousand, nine hundred seventy-one".
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