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3142244221 = 2943258601
BaseRepresentation
bin1011101101001010…
…1101011101111101
322002222200112201121
42323102231131331
522413403303341
61235445110541
7140603430604
oct27322553575
98088615647
103142244221
111372795656
127383b8451
133b0cc920c
1421b472a3b
15135ce04d1
hexbb4ad77d

3142244221 has 12 divisors (see below), whose sum is σ = 3328007580. Its totient is φ = 2963284800.

The previous prime is 3142244137. The next prime is 3142244251. The reversal of 3142244221 is 1224422413.

It can be written as a sum of positive squares in 2 ways, for example, as 1491040996 + 1651203225 = 38614^2 + 40635^2 .

It is not a de Polignac number, because 3142244221 - 213 = 3142236029 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 (3142244251) 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, 24321 + ... + 82921.

It is an arithmetic number, because the mean of its divisors is an integer number (277333965).

Almost surely, 23142244221 is an apocalyptic number.

It is an amenable number.

3142244221 is a deficient number, since it is larger than the sum of its proper divisors (185763359).

3142244221 is an equidigital number, since it uses as much as digits as its factorization.

3142244221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58716 (or 58673 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 3142244221 is about 56055.7242482871. The cubic root of 3142244221 is about 1464.6931328516.

Adding to 3142244221 its reverse (1224422413), we get a palindrome (4366666634).

The spelling of 3142244221 in words is "three billion, one hundred forty-two million, two hundred forty-four thousand, two hundred twenty-one".

Divisors: 1 29 43 1247 1849 53621 58601 1699429 2519843 73075447 108353249 3142244221