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3142239 = 31955127
BaseRepresentation
bin1011111111001001011111
312220122100020
423333021133
51301022424
6151203223
735465022
oct13771137
95818306
103142239
1118568a1
121076513
13860319
145bb1b9
15421079
hex2ff25f

3142239 has 8 divisors (see below), whose sum is σ = 4410240. Its totient is φ = 1984536.

The previous prime is 3142231. The next prime is 3142259. The reversal of 3142239 is 9322413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3142239 - 23 = 3142231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3142231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27507 + ... + 27620.

It is an arithmetic number, because the mean of its divisors is an integer number (551280).

Almost surely, 23142239 is an apocalyptic number.

3142239 is a deficient number, since it is larger than the sum of its proper divisors (1268001).

3142239 is a wasteful number, since it uses less digits than its factorization.

3142239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55149.

The product of its digits is 1296, while the sum is 24.

The square root of 3142239 is about 1772.6361724844. The cubic root of 3142239 is about 146.4692321630.

The spelling of 3142239 in words is "three million, one hundred forty-two thousand, two hundred thirty-nine".

Divisors: 1 3 19 57 55127 165381 1047413 3142239