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3140213 = 23136531
BaseRepresentation
bin1011111110101001110101
312220112120012
423332221311
51300441323
6151150005
735456066
oct13765165
95815505
103140213
11185531a
121075305
1385c41b
145ba56d
15420678
hex2fea75

3140213 has 4 divisors (see below), whose sum is σ = 3276768. Its totient is φ = 3003660.

The previous prime is 3140209. The next prime is 3140233. The reversal of 3140213 is 3120413.

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 not a de Polignac number, because 3140213 - 22 = 3140209 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 (3140233) 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, 68243 + ... + 68288.

It is an arithmetic number, because the mean of its divisors is an integer number (819192).

Almost surely, 23140213 is an apocalyptic number.

It is an amenable number.

3140213 is a deficient number, since it is larger than the sum of its proper divisors (136555).

3140213 is a wasteful number, since it uses less digits than its factorization.

3140213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136554.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3140213 is about 1772.0646150747. The cubic root of 3140213 is about 146.4377460725.

Adding to 3140213 its reverse (3120413), we get a palindrome (6260626).

The spelling of 3140213 in words is "three million, one hundred forty thousand, two hundred thirteen".

Divisors: 1 23 136531 3140213