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3142 = 21571
BaseRepresentation
bin110001000110
311022101
4301012
5100032
622314
712106
oct6106
94271
103142
1123a7
12199a
131579
141206
15de7
hexc46

3142 has 4 divisors (see below), whose sum is σ = 4716. Its totient is φ = 1570.

The previous prime is 3137. The next prime is 3163. The reversal of 3142 is 2413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2413 = 19127.

It is a plaindrome in base 12 and base 13.

It is a congruent number.

It is an unprimeable number.

3142 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 784 + ... + 787.

It is an arithmetic number, because the mean of its divisors is an integer number (1179).

3142 is a deficient number, since it is larger than the sum of its proper divisors (1574).

3142 is a wasteful number, since it uses less digits than its factorization.

3142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573.

The product of its digits is 24, while the sum is 10.

The square root of 3142 is about 56.0535458290. The cubic root of 3142 is about 14.6465518565.

Adding to 3142 its reverse (2413), we get a palindrome (5555).

Subtracting from 3142 its reverse (2413), we obtain a 6-th power (729 = 36).

The spelling of 3142 in words is "three thousand, one hundred forty-two", and thus it is an iban number.

Divisors: 1 2 1571 3142