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13094381 is a prime number
BaseRepresentation
bin110001111100…
…110111101101
3220122021010002
4301330313231
511323010011
61144354045
7216205016
oct61746755
926567102
1013094381
117434003
124475925
132936171
141a4c00d
151239c3b
hexc7cded

13094381 has 2 divisors, whose sum is σ = 13094382. Its totient is φ = 13094380.

The previous prime is 13094377. The next prime is 13094441. The reversal of 13094381 is 18349031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11162281 + 1932100 = 3341^2 + 1390^2 .

It is an emirp because it is prime and its reverse (18349031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13094381 - 22 = 13094377 is a prime.

It is a super-2 number, since 2×130943812 = 342925627546322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13094311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6547190 + 6547191.

It is an arithmetic number, because the mean of its divisors is an integer number (6547191).

Almost surely, 213094381 is an apocalyptic number.

It is an amenable number.

13094381 is a deficient number, since it is larger than the sum of its proper divisors (1).

13094381 is an equidigital number, since it uses as much as digits as its factorization.

13094381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 13094381 is about 3618.6158956153. The cubic root of 13094381 is about 235.7011262582.

The spelling of 13094381 in words is "thirteen million, ninety-four thousand, three hundred eighty-one".