Base | Representation |
---|---|
bin | 10010001000010… |
… | …01001010111001 |
3 | 101121011112000122 |
4 | 21010021022321 |
5 | 302413043311 |
6 | 23031343025 |
7 | 3524445035 |
oct | 1104111271 |
9 | 347145018 |
10 | 152081081 |
11 | 78933849 |
12 | 42b21a75 |
13 | 2567a209 |
14 | 162ab1c5 |
15 | d5410db |
hex | 91092b9 |
152081081 has 2 divisors, whose sum is σ = 152081082. Its totient is φ = 152081080.
The previous prime is 152081021. The next prime is 152081107. The reversal of 152081081 is 180180251.
It is an a-pointer prime, because the next prime (152081107) can be obtained adding 152081081 to its sum of digits (26).
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 92929600 + 59151481 = 9640^2 + 7691^2 .
It is a cyclic number.
It is not a de Polignac number, because 152081081 - 218 = 151818937 is a prime.
It is a super-2 number, since 2×1520810812 = 46257310396257122, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 152081081.
It is not a weakly prime, because it can be changed into another prime (152081011) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76040540 + 76040541.
It is an arithmetic number, because the mean of its divisors is an integer number (76040541).
Almost surely, 2152081081 is an apocalyptic number.
It is an amenable number.
152081081 is a deficient number, since it is larger than the sum of its proper divisors (1).
152081081 is an equidigital number, since it uses as much as digits as its factorization.
152081081 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 640, while the sum is 26.
The square root of 152081081 is about 12332.1158363032. The cubic root of 152081081 is about 533.7752061546.
The spelling of 152081081 in words is "one hundred fifty-two million, eighty-one thousand, eighty-one".
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