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3143412 = 223287317
BaseRepresentation
bin1011111111011011110100
312220200221200
423333123310
51301042122
6151212500
735501316
oct13773364
95820850
103143412
111857768
121077130
13860a0c
145bb7b6
154215ac
hex2ff6f4

3143412 has 18 divisors (see below), whose sum is σ = 7945938. Its totient is φ = 1047792.

The previous prime is 3143411. The next prime is 3143447. The reversal of 3143412 is 2143413.

It can be written as a sum of positive squares in only one way, i.e., 2322576 + 820836 = 1524^2 + 906^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3143411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43623 + ... + 43694.

It is an arithmetic number, because the mean of its divisors is an integer number (441441).

Almost surely, 23143412 is an apocalyptic number.

It is an amenable number.

3143412 is an abundant number, since it is smaller than the sum of its proper divisors (4802526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3143412 is a wasteful number, since it uses less digits than its factorization.

3143412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87327 (or 87322 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 3143412 is about 1772.9670047691. The cubic root of 3143412 is about 146.4874555843.

Adding to 3143412 its reverse (2143413), we get a palindrome (5286825).

Subtracting from 3143412 its reverse (2143413), we obtain a palindrome (999999).

The spelling of 3143412 in words is "three million, one hundred forty-three thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 87317 174634 261951 349268 523902 785853 1047804 1571706 3143412