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2479143 = 3826381
BaseRepresentation
bin1001011101010000100111
311122221202010
421131100213
51113313033
6125045303
730033552
oct11352047
94587663
102479143
111443687
129b6833
1368a564
14487699
1533e863
hex25d427

2479143 has 4 divisors (see below), whose sum is σ = 3305528. Its totient is φ = 1652760.

The previous prime is 2479129. The next prime is 2479151. The reversal of 2479143 is 3419742.

It is a happy number.

2479143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2479143 - 29 = 2478631 is a prime.

It is a super-2 number, since 2×24791432 = 12292300028898, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2479143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2472143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413188 + ... + 413193.

It is an arithmetic number, because the mean of its divisors is an integer number (826382).

22479143 is an apocalyptic number.

2479143 is a deficient number, since it is larger than the sum of its proper divisors (826385).

2479143 is an equidigital number, since it uses as much as digits as its factorization.

2479143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826384.

The product of its digits is 6048, while the sum is 30.

The square root of 2479143 is about 1574.5294535194. The cubic root of 2479143 is about 135.3423956065.

The spelling of 2479143 in words is "two million, four hundred seventy-nine thousand, one hundred forty-three".

Divisors: 1 3 826381 2479143