Base | Representation |
---|---|
bin | 1000000001001011… |
… | …0010010010100111 |
3 | 12120000010200000101 |
4 | 2000102302102213 |
5 | 13402004030411 |
6 | 553325324531 |
7 | 104224111441 |
oct | 20022622247 |
9 | 5500120011 |
10 | 2152408231 |
11 | a04a84186 |
12 | 500a06747 |
13 | 283c0a44c |
14 | 165c0d491 |
15 | c8e6a8c1 |
hex | 804b24a7 |
2152408231 has 2 divisors, whose sum is σ = 2152408232. Its totient is φ = 2152408230.
The previous prime is 2152408229. The next prime is 2152408243. The reversal of 2152408231 is 1328042512.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 2152408231 - 21 = 2152408229 is a prime.
It is a super-2 number, since 2×21524082312 = 9265722385753098722, which contains 22 as substring.
Together with 2152408229, it forms a pair of twin primes.
It is a self number, because there is not a number n which added to its sum of digits gives 2152408231.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2152408211) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076204115 + 1076204116.
It is an arithmetic number, because the mean of its divisors is an integer number (1076204116).
Almost surely, 22152408231 is an apocalyptic number.
2152408231 is a deficient number, since it is larger than the sum of its proper divisors (1).
2152408231 is an equidigital number, since it uses as much as digits as its factorization.
2152408231 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3840, while the sum is 28.
The square root of 2152408231 is about 46394.0538323609. The cubic root of 2152408231 is about 1291.1445945609.
The spelling of 2152408231 in words is "two billion, one hundred fifty-two million, four hundred eight thousand, two hundred thirty-one".
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