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3143393 = 11285763
BaseRepresentation
bin1011111111011011100001
312220200220222
423333123201
51301042033
6151212425
735501261
oct13773341
95820828
103143393
111857750
121077115
138609c6
145bb7a1
15421598
hex2ff6e1

3143393 has 4 divisors (see below), whose sum is σ = 3429168. Its totient is φ = 2857620.

The previous prime is 3143389. The next prime is 3143401. The reversal of 3143393 is 3933413.

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: 3933413 = 11357583.

It is a cyclic number.

It is not a de Polignac number, because 3143393 - 22 = 3143389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3143323) 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, 142871 + ... + 142892.

It is an arithmetic number, because the mean of its divisors is an integer number (857292).

Almost surely, 23143393 is an apocalyptic number.

It is an amenable number.

3143393 is a deficient number, since it is larger than the sum of its proper divisors (285775).

3143393 is a wasteful number, since it uses less digits than its factorization.

3143393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285774.

The product of its digits is 2916, while the sum is 26.

The square root of 3143393 is about 1772.9616465113. The cubic root of 3143393 is about 146.4871604414.

The spelling of 3143393 in words is "three million, one hundred forty-three thousand, three hundred ninety-three".

Divisors: 1 11 285763 3143393