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3213141 = 31071047
BaseRepresentation
bin1100010000011101010101
320001020121020
430100131111
51310310031
6152511353
736211521
oct14203525
96036536
103213141
1118a5098
1210ab559
13886689
145d8d81
15437096
hex310755

3213141 has 4 divisors (see below), whose sum is σ = 4284192. Its totient is φ = 2142092.

The previous prime is 3213139. The next prime is 3213149. The reversal of 3213141 is 1413123.

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: 1413123 = 3471041.

It is a cyclic number.

It is not a de Polignac number, because 3213141 - 21 = 3213139 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 3213141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213149) 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, 535521 + ... + 535526.

It is an arithmetic number, because the mean of its divisors is an integer number (1071048).

Almost surely, 23213141 is an apocalyptic number.

It is an amenable number.

3213141 is a deficient number, since it is larger than the sum of its proper divisors (1071051).

3213141 is a wasteful number, since it uses less digits than its factorization.

3213141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071050.

The product of its digits is 72, while the sum is 15.

The square root of 3213141 is about 1792.5236400115. The cubic root of 3213141 is about 147.5627005286.

Adding to 3213141 its reverse (1413123), we get a palindrome (4626264).

The spelling of 3213141 in words is "three million, two hundred thirteen thousand, one hundred forty-one".

Divisors: 1 3 1071047 3213141