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3142146 = 23779947
BaseRepresentation
bin1011111111001000000010
312220122012210
423333020002
51301022041
6151202550
735464530
oct13771002
95818183
103142146
111856817
121076456
13860277
145bb150
15421016
hex2ff202

3142146 has 32 divisors (see below), whose sum is σ = 7280640. Its totient is φ = 885456.

The previous prime is 3142123. The next prime is 3142157. The reversal of 3142146 is 6412413.

3142146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2845 + ... + 3791.

It is an arithmetic number, because the mean of its divisors is an integer number (227520).

Almost surely, 23142146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3142146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3640320).

3142146 is an abundant number, since it is smaller than the sum of its proper divisors (4138494).

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

3142146 is a wasteful number, since it uses less digits than its factorization.

3142146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038.

The product of its digits is 576, while the sum is 21.

The square root of 3142146 is about 1772.6099401730. The cubic root of 3142146 is about 146.4677871453.

Adding to 3142146 its reverse (6412413), we get a palindrome (9554559).

The spelling of 3142146 in words is "three million, one hundred forty-two thousand, one hundred forty-six".

Divisors: 1 2 3 6 7 14 21 42 79 158 237 474 553 947 1106 1659 1894 2841 3318 5682 6629 13258 19887 39774 74813 149626 224439 448878 523691 1047382 1571073 3142146