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13871023 is a prime number
BaseRepresentation
bin110100111010…
…011110101111
3222002201110121
4310322132233
512022333043
61213145411
7225621205
oct64723657
928081417
1013871023
117914561
12478b267
132b4880a
141bb1075
15133eded
hexd3a7af

13871023 has 2 divisors, whose sum is σ = 13871024. Its totient is φ = 13871022.

The previous prime is 13870979. The next prime is 13871051. The reversal of 13871023 is 32017831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13871023 - 213 = 13862831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13871423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6935511 + 6935512.

It is an arithmetic number, because the mean of its divisors is an integer number (6935512).

Almost surely, 213871023 is an apocalyptic number.

13871023 is a deficient number, since it is larger than the sum of its proper divisors (1).

13871023 is an equidigital number, since it uses as much as digits as its factorization.

13871023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 13871023 is about 3724.3822306525. The cubic root of 13871023 is about 240.2718158769.

Adding to 13871023 its reverse (32017831), we get a palindrome (45888854).

The spelling of 13871023 in words is "thirteen million, eight hundred seventy-one thousand, twenty-three".