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3142393 is a prime number
BaseRepresentation
bin1011111111001011111001
312220122112221
423333023321
51301024033
6151204041
735465332
oct13771371
95818487
103142393
111856a21
121076621
13860407
145bb289
1542112d
hex2ff2f9

3142393 has 2 divisors, whose sum is σ = 3142394. Its totient is φ = 3142392.

The previous prime is 3142387. The next prime is 3142441. The reversal of 3142393 is 3932413.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1982464 + 1159929 = 1408^2 + 1077^2 .

It is an emirp because it is prime and its reverse (3932413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3142393 - 221 = 1045241 is a prime.

It is not a weakly prime, because it can be changed into another prime (3142303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1571196 + 1571197.

It is an arithmetic number, because the mean of its divisors is an integer number (1571197).

Almost surely, 23142393 is an apocalyptic number.

It is an amenable number.

3142393 is a deficient number, since it is larger than the sum of its proper divisors (1).

3142393 is an equidigital number, since it uses as much as digits as its factorization.

3142393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 25.

The square root of 3142393 is about 1772.6796100819. The cubic root of 3142393 is about 146.4716249253.

It can be divided in two parts, 3142 and 393, that multiplied together give a triangular number (1234806 = T1571).

The spelling of 3142393 in words is "three million, one hundred forty-two thousand, three hundred ninety-three".