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3142442213 = 9533297421
BaseRepresentation
bin1011101101001101…
…1101110011100101
322010000001121022122
42323103131303211
522413431122323
61235453235325
7140605214051
oct27323356345
98100047278
103142442213
111372910389
12738492b45
133b1068381
1421b4c4c61
15135d2dec8
hexbb4ddce5

3142442213 has 4 divisors (see below), whose sum is σ = 3145740588. Its totient is φ = 3139143840.

The previous prime is 3142442209. The next prime is 3142442221. The reversal of 3142442213 is 3122442413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3122442413 = 16943184291.

It can be written as a sum of positive squares in 2 ways, for example, as 1594963969 + 1547478244 = 39937^2 + 39338^2 .

It is a cyclic number.

It is not a de Polignac number, because 3142442213 - 22 = 3142442209 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 (3142442203) 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, 1647758 + ... + 1649663.

It is an arithmetic number, because the mean of its divisors is an integer number (786435147).

Almost surely, 23142442213 is an apocalyptic number.

It is an amenable number.

3142442213 is a deficient number, since it is larger than the sum of its proper divisors (3298375).

3142442213 is an equidigital number, since it uses as much as digits as its factorization.

3142442213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3298374.

The product of its digits is 4608, while the sum is 26.

The square root of 3142442213 is about 56057.4902488508. The cubic root of 3142442213 is about 1464.7238955179.

Adding to 3142442213 its reverse (3122442413), we get a palindrome (6264884626).

It can be divided in two parts, 31424 and 42213, that added together give a palindrome (73637).

The spelling of 3142442213 in words is "three billion, one hundred forty-two million, four hundred forty-two thousand, two hundred thirteen".

Divisors: 1 953 3297421 3142442213