Base | Representation |
---|---|
bin | 10010001011011… |
… | …00001001011011 |
3 | 101121221010010211 |
4 | 21011230021123 |
5 | 303014031431 |
6 | 23044151551 |
7 | 3531054013 |
oct | 1105541133 |
9 | 347833124 |
10 | 152486491 |
11 | 790903a3 |
12 | 430985b7 |
13 | 2578c8c1 |
14 | 16374c43 |
15 | d5c12b1 |
hex | 916c25b |
152486491 has 2 divisors, whose sum is σ = 152486492. Its totient is φ = 152486490.
The previous prime is 152486483. The next prime is 152486501. The reversal of 152486491 is 194684251.
It is a weak prime.
It is an emirp because it is prime and its reverse (194684251) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 152486491 - 23 = 152486483 is a prime.
It is a super-3 number, since 3×1524864913 (a number of 26 digits) contains 333 as substring.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (152486431) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76243245 + 76243246.
It is an arithmetic number, because the mean of its divisors is an integer number (76243246).
Almost surely, 2152486491 is an apocalyptic number.
152486491 is a deficient number, since it is larger than the sum of its proper divisors (1).
152486491 is an equidigital number, since it uses as much as digits as its factorization.
152486491 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 69120, while the sum is 40.
The square root of 152486491 is about 12348.5420596927. The cubic root of 152486491 is about 534.2490889057.
The spelling of 152486491 in words is "one hundred fifty-two million, four hundred eighty-six thousand, four hundred ninety-one".
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