Search a number
-
+
3142756 = 2217113409
BaseRepresentation
bin1011111111010001100100
312220200001101
423333101210
51301032011
6151205444
735466361
oct13772144
95820041
103142756
111857221
121076884
13860626
145bb468
154212c1
hex2ff464

3142756 has 24 divisors (see below), whose sum is σ = 5889240. Its totient is φ = 1462272.

The previous prime is 3142751. The next prime is 3142757. The reversal of 3142756 is 6572413.

It can be written as a sum of positive squares in 4 ways, for example, as 614656 + 2528100 = 784^2 + 1590^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3142751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7480 + ... + 7888.

It is an arithmetic number, because the mean of its divisors is an integer number (245385).

Almost surely, 23142756 is an apocalyptic number.

It is an amenable number.

3142756 is a deficient number, since it is larger than the sum of its proper divisors (2746484).

3142756 is a wasteful number, since it uses less digits than its factorization.

3142756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 541 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 3142756 is about 1772.7819944934. The cubic root of 3142756 is about 146.4772646987.

The spelling of 3142756 in words is "three million, one hundred forty-two thousand, seven hundred fifty-six".

Divisors: 1 2 4 17 34 68 113 226 409 452 818 1636 1921 3842 6953 7684 13906 27812 46217 92434 184868 785689 1571378 3142756