Base | Representation |
---|---|
bin | 110111010101… |
… | …1010110110111 |
3 | 2000121000221112 |
4 | 1232223112313 |
5 | 24411412211 |
6 | 2513505235 |
7 | 501416156 |
oct | 156532667 |
9 | 60530845 |
10 | 29013431 |
11 | 15417247 |
12 | 987221b |
13 | 601ac15 |
14 | 3bd359d |
15 | 283188b |
hex | 1bab5b7 |
29013431 has 2 divisors, whose sum is σ = 29013432. Its totient is φ = 29013430.
The previous prime is 29013409. The next prime is 29013451. The reversal of 29013431 is 13431092.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 29013431 - 26 = 29013367 is a prime.
It is a super-2 number, since 2×290134312 = 1683558356783522, which contains 22 as substring.
It is a Sophie Germain prime.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 29013397 and 29013406.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (29013451) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14506715 + 14506716.
It is an arithmetic number, because the mean of its divisors is an integer number (14506716).
Almost surely, 229013431 is an apocalyptic number.
29013431 is a deficient number, since it is larger than the sum of its proper divisors (1).
29013431 is an equidigital number, since it uses as much as digits as its factorization.
29013431 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 648, while the sum is 23.
The square root of 29013431 is about 5386.4116998239. The cubic root of 29013431 is about 307.2791054635.
The spelling of 29013431 in words is "twenty-nine million, thirteen thousand, four hundred thirty-one".
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