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3111022141 = 4931630911
BaseRepresentation
bin1011100101101110…
…0110111000111101
322000210221022002021
42321123212320331
522332410202031
61232412000141
7140044152253
oct27133467075
98023838067
103111022141
1113570aaa87
12729a60051
133a76b6c06
142172665d3
151331c4511
hexb96e6e3d

3111022141 has 4 divisors (see below), whose sum is σ = 3111657984. Its totient is φ = 3110386300.

The previous prime is 3111022063. The next prime is 3111022147. The reversal of 3111022141 is 1412201113.

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 a de Polignac number, because none of the positive numbers 2k-3111022141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111022147) 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, 310525 + ... + 320386.

It is an arithmetic number, because the mean of its divisors is an integer number (777914496).

Almost surely, 23111022141 is an apocalyptic number.

It is an amenable number.

3111022141 is a deficient number, since it is larger than the sum of its proper divisors (635843).

3111022141 is an equidigital number, since it uses as much as digits as its factorization.

3111022141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635842.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 3111022141 is about 55776.5375494033. The cubic root of 3111022141 is about 1459.8257972239.

Adding to 3111022141 its reverse (1412201113), we get a palindrome (4523223254).

The spelling of 3111022141 in words is "three billion, one hundred eleven million, twenty-two thousand, one hundred forty-one".

Divisors: 1 4931 630911 3111022141