Base | Representation |
---|---|
bin | 111000000011… |
… | …0011010010111 |
3 | 2001021222112212 |
4 | 1300012122113 |
5 | 30010331031 |
6 | 2525504035 |
7 | 504531416 |
oct | 160063227 |
9 | 61258485 |
10 | 29386391 |
11 | 15651481 |
12 | 9a1201b |
13 | 611b8c8 |
14 | 3c8d47d |
15 | 28a712b |
hex | 1c06697 |
29386391 has 2 divisors, whose sum is σ = 29386392. Its totient is φ = 29386390.
The previous prime is 29386361. The next prime is 29386417. The reversal of 29386391 is 19368392.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 29386391 - 214 = 29370007 is a prime.
It is a super-3 number, since 3×293863913 (a number of 23 digits) contains 333 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 (29386321) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14693195 + 14693196.
It is an arithmetic number, because the mean of its divisors is an integer number (14693196).
Almost surely, 229386391 is an apocalyptic number.
29386391 is a deficient number, since it is larger than the sum of its proper divisors (1).
29386391 is an equidigital number, since it uses as much as digits as its factorization.
29386391 is an evil number, because the sum of its binary digits is even.
The product of its digits is 69984, while the sum is 41.
The square root of 29386391 is about 5420.9216006137. The cubic root of 29386391 is about 308.5901675638.
The spelling of 29386391 in words is "twenty-nine million, three hundred eighty-six thousand, three hundred ninety-one".
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