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3142975 = 521121039
BaseRepresentation
bin1011111111010100111111
312220200100111
423333110333
51301033400
6151210451
735500123
oct13772477
95820314
103142975
111857400
121076a27
13860764
145bb583
154213ba
hex2ff53f

3142975 has 18 divisors (see below), whose sum is σ = 4287920. Its totient is φ = 2283600.

The previous prime is 3142969. The next prime is 3142981. The reversal of 3142975 is 5792413.

It is an interprime number because it is at equal distance from previous prime (3142969) and next prime (3142981).

It is a de Polignac number, because none of the positive numbers 2k-3142975 is a prime.

3142975 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2506 + ... + 3544.

Almost surely, 23142975 is an apocalyptic number.

3142975 is a deficient number, since it is larger than the sum of its proper divisors (1144945).

3142975 is a wasteful number, since it uses less digits than its factorization.

3142975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071 (or 1055 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 3142975 is about 1772.8437607415. The cubic root of 3142975 is about 146.4806669965.

The spelling of 3142975 in words is "three million, one hundred forty-two thousand, nine hundred seventy-five".

Divisors: 1 5 11 25 55 121 275 605 1039 3025 5195 11429 25975 57145 125719 285725 628595 3142975