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3142347 = 313197409
BaseRepresentation
bin1011111111001011001011
312220122111020
423333023023
51301023342
6151203523
735465235
oct13771313
95818436
103142347
11185698a
1210765a3
138603a0
145bb255
154210ec
hex2ff2cb

3142347 has 16 divisors (see below), whose sum is σ = 4546080. Its totient is φ = 1919232.

The previous prime is 3142343. The next prime is 3142351. The reversal of 3142347 is 7432413.

It is an interprime number because it is at equal distance from previous prime (3142343) and next prime (3142351).

It is not a de Polignac number, because 3142347 - 22 = 3142343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3142343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7479 + ... + 7887.

It is an arithmetic number, because the mean of its divisors is an integer number (284130).

Almost surely, 23142347 is an apocalyptic number.

3142347 is a deficient number, since it is larger than the sum of its proper divisors (1403733).

3142347 is a wasteful number, since it uses less digits than its factorization.

3142347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622.

The product of its digits is 2016, while the sum is 24.

The square root of 3142347 is about 1772.6666353266. Note that the first 4 decimals coincide. The cubic root of 3142347 is about 146.4709102123.

The spelling of 3142347 in words is "three million, one hundred forty-two thousand, three hundred forty-seven".

Divisors: 1 3 13 39 197 409 591 1227 2561 5317 7683 15951 80573 241719 1047449 3142347