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3143885 = 51274951
BaseRepresentation
bin1011111111100011001101
312220201121012
423333203031
51301101020
6151215005
735502563
oct13774315
95821535
103143885
111858058
121077465
13860cb4
145bba33
154217c5
hex2ff8cd

3143885 has 8 divisors (see below), whose sum is σ = 3803136. Its totient is φ = 2494800.

The previous prime is 3143863. The next prime is 3143897. The reversal of 3143885 is 5883413.

It is a happy number.

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

It is not a de Polignac number, because 3143885 - 210 = 3142861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1841 + ... + 3110.

It is an arithmetic number, because the mean of its divisors is an integer number (475392).

Almost surely, 23143885 is an apocalyptic number.

It is an amenable number.

3143885 is a deficient number, since it is larger than the sum of its proper divisors (659251).

3143885 is a wasteful number, since it uses less digits than its factorization.

3143885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5083.

The product of its digits is 11520, while the sum is 32.

The square root of 3143885 is about 1773.1003919688. The cubic root of 3143885 is about 146.4948027060.

The spelling of 3143885 in words is "three million, one hundred forty-three thousand, eight hundred eighty-five".

Divisors: 1 5 127 635 4951 24755 628777 3143885