Base | Representation |
---|---|
bin | 111111110100000… |
… | …1100011010010111 |
3 | 12112020010102020110 |
4 | 1333220030122113 |
5 | 13341124234111 |
6 | 552250134103 |
7 | 104030160024 |
oct | 17750143227 |
9 | 5466112213 |
10 | 2141243031 |
11 | 9a9748644 |
12 | 4b9121333 |
13 | 2817cb415 |
14 | 16454454b |
15 | c7eb25a6 |
hex | 7fa0c697 |
2141243031 has 12 divisors (see below), whose sum is σ = 2864698872. Its totient is φ = 1422657648.
The previous prime is 2141243011. The next prime is 2141243051. The reversal of 2141243031 is 1303421412.
It is an interprime number because it is at equal distance from previous prime (2141243011) and next prime (2141243051).
It is not a de Polignac number, because 2141243031 - 27 = 2141242903 is a prime.
It is a super-2 number, since 2×21412430312 = 9169843435612133922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 2141242989 and 2141243007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2141243011) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 278961 + ... + 286533.
It is an arithmetic number, because the mean of its divisors is an integer number (238724906).
Almost surely, 22141243031 is an apocalyptic number.
2141243031 is a deficient number, since it is larger than the sum of its proper divisors (723455841).
2141243031 is an frugal number, since it uses more digits than its factorization.
2141243031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8190 (or 7883 counting only the distinct ones).
The product of its (nonzero) digits is 576, while the sum is 21.
The square root of 2141243031 is about 46273.5673035914. The cubic root of 2141243031 is about 1288.9082024672.
Adding to 2141243031 its reverse (1303421412), we get a palindrome (3444664443).
The spelling of 2141243031 in words is "two billion, one hundred forty-one million, two hundred forty-three thousand, thirty-one".
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