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3003081 = 31001027
BaseRepresentation
bin1011011101001011001001
312122120110020
423131023021
51232044311
6144211053
734345224
oct13351311
95576406
103003081
111771294
121009a89
13811b93
145825bb
153e4c06
hex2dd2c9

3003081 has 4 divisors (see below), whose sum is σ = 4004112. Its totient is φ = 2002052.

The previous prime is 3003079. The next prime is 3003113. The reversal of 3003081 is 1803003.

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 a cyclic number.

It is not a de Polignac number, because 3003081 - 21 = 3003079 is a prime.

It is a super-2 number, since 2×30030812 = 18036990985122, which contains 22 as substring.

It is a D-number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3003081.

It is not an unprimeable number, because it can be changed into a prime (3003061) 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, 500511 + ... + 500516.

It is an arithmetic number, because the mean of its divisors is an integer number (1001028).

Almost surely, 23003081 is an apocalyptic number.

It is an amenable number.

3003081 is a deficient number, since it is larger than the sum of its proper divisors (1001031).

3003081 is a wasteful number, since it uses less digits than its factorization.

3003081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001030.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 3003081 is about 1732.9399874202. The cubic root of 3003081 is about 144.2743131486.

Adding to 3003081 its reverse (1803003), we get a palindrome (4806084).

The spelling of 3003081 in words is "three million, three thousand, eighty-one".

Divisors: 1 3 1001027 3003081