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3142231 is a prime number
BaseRepresentation
bin1011111111001001010111
312220122022221
423333021113
51301022411
6151203211
735465011
oct13771127
95818287
103142231
111856894
121076507
13860311
145bb1b1
15421071
hex2ff257

3142231 has 2 divisors, whose sum is σ = 3142232. Its totient is φ = 3142230.

The previous prime is 3142219. The next prime is 3142259. The reversal of 3142231 is 1322413.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3142231 - 211 = 3140183 is a prime.

It is a super-2 number, since 2×31422312 = 19747231314722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3142831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1571115 + 1571116.

It is an arithmetic number, because the mean of its divisors is an integer number (1571116).

Almost surely, 23142231 is an apocalyptic number.

3142231 is a deficient number, since it is larger than the sum of its proper divisors (1).

3142231 is an equidigital number, since it uses as much as digits as its factorization.

3142231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 16.

The square root of 3142231 is about 1772.6339159567. The cubic root of 3142231 is about 146.4691078615.

Adding to 3142231 its reverse (1322413), we get a palindrome (4464644).

The spelling of 3142231 in words is "three million, one hundred forty-two thousand, two hundred thirty-one".