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3142143 = 321093203
BaseRepresentation
bin1011111111000111111111
312220122012200
423333013333
51301022033
6151202543
735464524
oct13770777
95818180
103142143
111856814
121076453
13860274
145bb14b
15421013
hex2ff1ff

3142143 has 12 divisors (see below), whose sum is σ = 4581720. Its totient is φ = 2074896.

The previous prime is 3142123. The next prime is 3142157. The reversal of 3142143 is 3412413.

It is not a de Polignac number, because 3142143 - 26 = 3142079 is a prime.

It is a super-3 number, since 3×31421433 = 93067723917333594621, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3142123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 621 + ... + 2582.

It is an arithmetic number, because the mean of its divisors is an integer number (381810).

Almost surely, 23142143 is an apocalyptic number.

3142143 is a deficient number, since it is larger than the sum of its proper divisors (1439577).

3142143 is a wasteful number, since it uses less digits than its factorization.

3142143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3318 (or 3315 counting only the distinct ones).

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

The square root of 3142143 is about 1772.6090939629. The cubic root of 3142143 is about 146.4677405314.

Adding to 3142143 its reverse (3412413), we get a palindrome (6554556).

The spelling of 3142143 in words is "three million, one hundred forty-two thousand, one hundred forty-three".

Divisors: 1 3 9 109 327 981 3203 9609 28827 349127 1047381 3142143