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13801393 is a prime number
BaseRepresentation
bin110100101001…
…011110110001
3221222011221201
4310221132301
512013121033
61211451201
7225211204
oct64513661
927864851
1013801393
117877211
124756b01
132b22c08
141b9393b
15132947d
hexd297b1

13801393 has 2 divisors, whose sum is σ = 13801394. Its totient is φ = 13801392.

The previous prime is 13801387. The next prime is 13801483. The reversal of 13801393 is 39310831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11888704 + 1912689 = 3448^2 + 1383^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13801393 is a prime.

It is not a weakly prime, because it can be changed into another prime (13801313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6900696 + 6900697.

It is an arithmetic number, because the mean of its divisors is an integer number (6900697).

Almost surely, 213801393 is an apocalyptic number.

It is an amenable number.

13801393 is a deficient number, since it is larger than the sum of its proper divisors (1).

13801393 is an equidigital number, since it uses as much as digits as its factorization.

13801393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 13801393 is about 3715.0226109675. The cubic root of 13801393 is about 239.8691010728.

The spelling of 13801393 in words is "thirteen million, eight hundred one thousand, three hundred ninety-three".