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9049081 = 12317351
BaseRepresentation
bin100010100001…
…001111111001
3122000202000011
4202201033321
54304032311
6521541521
7136626106
oct42411771
918022004
109049081
115120788
1230448a1
131b4aab2
1412b7aad
15bdb321
hex8a13f9

9049081 has 4 divisors (see below), whose sum is σ = 9057664. Its totient is φ = 9040500.

The previous prime is 9049037. The next prime is 9049109. The reversal of 9049081 is 1809409.

9049081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1809409 = 7258487.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-9049081 is a prime.

It is a super-2 number, since 2×90490812 = 163771733889122, which contains 22 as substring.

It is a Duffinian number.

9049081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9049031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2445 + ... + 4906.

It is an arithmetic number, because the mean of its divisors is an integer number (2264416).

Almost surely, 29049081 is an apocalyptic number.

It is an amenable number.

9049081 is a deficient number, since it is larger than the sum of its proper divisors (8583).

9049081 is a wasteful number, since it uses less digits than its factorization.

9049081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8582.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 9049081 is about 3008.1690444521. The cubic root of 9049081 is about 208.3858177456.

The spelling of 9049081 in words is "nine million, forty-nine thousand, eighty-one".

Divisors: 1 1231 7351 9049081