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9136081 = 43212467
BaseRepresentation
bin100010110110…
…011111010001
3122012011100101
4202312133101
54314323311
6523452401
7140440543
oct42663721
918164311
109136081
115180089
123087101
131b7b586
1412db693
15c06ec1
hex8b67d1

9136081 has 4 divisors (see below), whose sum is σ = 9348592. Its totient is φ = 8923572.

The previous prime is 9136079. The next prime is 9136109. The reversal of 9136081 is 1806319.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1806319 = 6592741.

It is a cyclic number.

It is not a de Polignac number, because 9136081 - 21 = 9136079 is a prime.

It is a super-2 number, since 2×91360812 = 166935952077122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9136051) 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 in 3 ways as a sum of consecutive naturals, for example, 106191 + ... + 106276.

It is an arithmetic number, because the mean of its divisors is an integer number (2337148).

Almost surely, 29136081 is an apocalyptic number.

It is an amenable number.

9136081 is a deficient number, since it is larger than the sum of its proper divisors (212511).

9136081 is a wasteful number, since it uses less digits than its factorization.

9136081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212510.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 9136081 is about 3022.5950770819. The cubic root of 9136081 is about 209.0515123746.

The spelling of 9136081 in words is "nine million, one hundred thirty-six thousand, eighty-one".

Divisors: 1 43 212467 9136081