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2871423 = 33106349
BaseRepresentation
bin1010111101000001111111
312101212212000
422331001333
51213341143
6141313343
733256332
oct12750177
95355760
102871423
111691385
12b65853
13796c89
1454a619
153babd3
hex2bd07f

2871423 has 8 divisors (see below), whose sum is σ = 4254000. Its totient is φ = 1914264.

The previous prime is 2871409. The next prime is 2871433. The reversal of 2871423 is 3241782.

It is not a de Polignac number, because 2871423 - 25 = 2871391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 106349 = 2871423 / (2 + 8 + 7 + 1 + 4 + 2 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2871433) 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, 53148 + ... + 53201.

It is an arithmetic number, because the mean of its divisors is an integer number (531750).

22871423 is an apocalyptic number.

2871423 is a deficient number, since it is larger than the sum of its proper divisors (1382577).

2871423 is a wasteful number, since it uses less digits than its factorization.

2871423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106358 (or 106352 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 2871423 is about 1694.5273677341. The cubic root of 2871423 is about 142.1343534338.

The spelling of 2871423 in words is "two million, eight hundred seventy-one thousand, four hundred twenty-three".

Divisors: 1 3 9 27 106349 319047 957141 2871423