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3093021 = 32557617
BaseRepresentation
bin1011110011001000011101
312211010211100
423303020131
51242434041
6150143313
735201361
oct13631035
95733740
103093021
111822918
121051b39
13843ab9
145a72a1
154116b6
hex2f321d

3093021 has 12 divisors (see below), whose sum is σ = 4482972. Its totient is φ = 2054976.

The previous prime is 3093011. The next prime is 3093043. The reversal of 3093021 is 1203903.

It can be written as a sum of positive squares in 2 ways, for example, as 168921 + 2924100 = 411^2 + 1710^2 .

It is not a de Polignac number, because 3093021 - 25 = 3092989 is a prime.

It is an Ulam number.

3093021 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3092985 and 3093003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3093011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4705 + ... + 5321.

It is an arithmetic number, because the mean of its divisors is an integer number (373581).

Almost surely, 23093021 is an apocalyptic number.

It is an amenable number.

3093021 is a deficient number, since it is larger than the sum of its proper divisors (1389951).

3093021 is a wasteful number, since it uses less digits than its factorization.

3093021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180 (or 1177 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 3093021 is about 1758.6986666283. The cubic root of 3093021 is about 145.7004711735.

Adding to 3093021 its reverse (1203903), we get a palindrome (4296924).

The spelling of 3093021 in words is "three million, ninety-three thousand, twenty-one".

Divisors: 1 3 9 557 617 1671 1851 5013 5553 343669 1031007 3093021