Base | Representation |
---|---|
bin | 111111111101110… |
… | …000000001010001 |
3 | 2202210022202220101 |
4 | 333331300001101 |
5 | 4144211331311 |
6 | 254253212401 |
7 | 35410433161 |
oct | 7775600121 |
9 | 2683282811 |
10 | 1073152081 |
11 | 500848051 |
12 | 25b491101 |
13 | 141440641 |
14 | a27505a1 |
15 | 64330ec1 |
hex | 3ff70051 |
1073152081 has 27 divisors (see below), whose sum is σ = 1193864977. Its totient is φ = 964424960.
The previous prime is 1073152063. The next prime is 1073152111. The reversal of 1073152081 is 1802513701.
The square root of 1073152081 is 32759.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in 4 ways, for example, as 75603025 + 997549056 = 8695^2 + 31584^2 .
It is not a de Polignac number, because 1073152081 - 213 = 1073143889 is a prime.
It is a super-2 number, since 2×10731520812 = 2303310777909261122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1073152021) by changing a digit.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 22833000 + ... + 22833046.
Almost surely, 21073152081 is an apocalyptic number.
1073152081 is the 32759-th square number.
1073152081 is the 16380-th centered octagonal number.
It is an amenable number.
1073152081 is a deficient number, since it is larger than the sum of its proper divisors (120712896).
1073152081 is an frugal number, since it uses more digits than its factorization.
1073152081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 210 (or 105 counting only the distinct ones).
The product of its (nonzero) digits is 1680, while the sum is 28.
The cubic root of 1073152081 is about 1023.8124914159.
Adding to 1073152081 its reverse (1802513701), we get a palindrome (2875665782).
The spelling of 1073152081 in words is "one billion, seventy-three million, one hundred fifty-two thousand, eighty-one".
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