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3002211021 = 31000737007
BaseRepresentation
bin1011001011110010…
…0001101011001101
321202020012010021210
42302330201223031
522122031223041
61213523445033
7134253241545
oct26274415315
97666163253
103002211021
111300740637
126b9526779
1338aca9a34
14206a20325
1512887e016
hexb2f21acd

3002211021 has 4 divisors (see below), whose sum is σ = 4002948032. Its totient is φ = 2001474012.

The previous prime is 3002210989. The next prime is 3002211041. The reversal of 3002211021 is 1201122003.

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: 1201122003 = 3400374001.

It is not a de Polignac number, because 3002211021 - 25 = 3002210989 is a prime.

It is a super-2 number, since 2×30022110212 = 18026542029227724882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3002210988 and 3002211006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3002211041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500368501 + ... + 500368506.

It is an arithmetic number, because the mean of its divisors is an integer number (1000737008).

Almost surely, 23002211021 is an apocalyptic number.

It is an amenable number.

3002211021 is a deficient number, since it is larger than the sum of its proper divisors (1000737011).

3002211021 is a wasteful number, since it uses less digits than its factorization.

3002211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000737010.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 3002211021 is about 54792.4358009388. The cubic root of 3002211021 is about 1442.6037993083.

Adding to 3002211021 its reverse (1201122003), we get a palindrome (4203333024).

The spelling of 3002211021 in words is "three billion, two million, two hundred eleven thousand, twenty-one".

Divisors: 1 3 1000737007 3002211021