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2871013 is a prime number
BaseRepresentation
bin1010111100111011100101
312101212021211
422330323211
51213333023
6141311421
733255205
oct12747345
95355254
102871013
111691042
12b65571
13796a32
1454a405
153baa0d
hex2bcee5

2871013 has 2 divisors, whose sum is σ = 2871014. Its totient is φ = 2871012.

The previous prime is 2870993. The next prime is 2871019. The reversal of 2871013 is 3101782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2712609 + 158404 = 1647^2 + 398^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2871013 is a prime.

It is equal to p208183 and since 2871013 and 208183 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2871019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1435506 + 1435507.

It is an arithmetic number, because the mean of its divisors is an integer number (1435507).

22871013 is an apocalyptic number.

It is an amenable number.

2871013 is a deficient number, since it is larger than the sum of its proper divisors (1).

2871013 is an equidigital number, since it uses as much as digits as its factorization.

2871013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 2871013 is about 1694.4063857292. The cubic root of 2871013 is about 142.1275881634.

Adding to 2871013 its reverse (3101782), we get a palindrome (5972795).

The spelling of 2871013 in words is "two million, eight hundred seventy-one thousand, thirteen".