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8904081 = 32968027
BaseRepresentation
bin100001111101…
…110110010001
3121202101002210
4201331312101
54234412311
6514502333
7135453264
oct41756621
917671083
108904081
11503184a
122b949a9
131ac9ab4
14127acdb
15bad3a6
hex87dd91

8904081 has 4 divisors (see below), whose sum is σ = 11872112. Its totient is φ = 5936052.

The previous prime is 8904079. The next prime is 8904113. The reversal of 8904081 is 1804098.

It is a happy number.

8904081 is digitally balanced in base 3, 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.

It is not a de Polignac number, because 8904081 - 21 = 8904079 is a prime.

It is a super-2 number, since 2×89040812 = 158565316909122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8924081) 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, 1484011 + ... + 1484016.

It is an arithmetic number, because the mean of its divisors is an integer number (2968028).

Almost surely, 28904081 is an apocalyptic number.

It is an amenable number.

8904081 is a deficient number, since it is larger than the sum of its proper divisors (2968031).

8904081 is a wasteful number, since it uses less digits than its factorization.

8904081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968030.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 8904081 is about 2983.9706767996. The cubic root of 8904081 is about 207.2667801149.

The spelling of 8904081 in words is "eight million, nine hundred four thousand, eighty-one".

Divisors: 1 3 2968027 8904081