Base | Representation |
---|---|
bin | 10001010011011… |
… | …10111111110011 |
3 | 101010010210112002 |
4 | 20221232333303 |
5 | 244130030011 |
6 | 22223124215 |
7 | 3411552356 |
oct | 1051567763 |
9 | 333123462 |
10 | 145158131 |
11 | 74a354a8 |
12 | 4074366b |
13 | 240c50b1 |
14 | 153c829d |
15 | cb24c3b |
hex | 8a6eff3 |
145158131 has 2 divisors, whose sum is σ = 145158132. Its totient is φ = 145158130.
The previous prime is 145158103. The next prime is 145158133. The reversal of 145158131 is 131851541.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 145158131 - 218 = 144895987 is a prime.
It is a super-2 number, since 2×1451581312 = 42141765990826322, which contains 22 as substring.
Together with 145158133, it forms a pair of twin primes.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 145158094 and 145158103.
It is not a weakly prime, because it can be changed into another prime (145158133) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72579065 + 72579066.
It is an arithmetic number, because the mean of its divisors is an integer number (72579066).
Almost surely, 2145158131 is an apocalyptic number.
145158131 is a deficient number, since it is larger than the sum of its proper divisors (1).
145158131 is an equidigital number, since it uses as much as digits as its factorization.
145158131 is an evil number, because the sum of its binary digits is even.
The product of its digits is 2400, while the sum is 29.
The square root of 145158131 is about 12048.1588219943. The cubic root of 145158131 is about 525.5496960518.
The spelling of 145158131 in words is "one hundred forty-five million, one hundred fifty-eight thousand, one hundred thirty-one".
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