Base | Representation |
---|---|
bin | 110111011101… |
… | …1101101101111 |
3 | 2000201102212000 |
4 | 1232323231233 |
5 | 24421033211 |
6 | 2515143343 |
7 | 502115412 |
oct | 156735557 |
9 | 60642760 |
10 | 29080431 |
11 | 15462616 |
12 | 98a4b53 |
13 | 6042573 |
14 | 3c0db79 |
15 | 2846656 |
hex | 1bbbb6f |
29080431 has 16 divisors (see below), whose sum is σ = 45350400. Its totient is φ = 18366264.
The previous prime is 29080423. The next prime is 29080433. The reversal of 29080431 is 13408092.
It is not a de Polignac number, because 29080431 - 23 = 29080423 is a prime.
It is a super-2 number, since 2×290804312 = 1691342934291522, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 29080395 and 29080404.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (29080433) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27831 + ... + 28856.
It is an arithmetic number, because the mean of its divisors is an integer number (2834400).
Almost surely, 229080431 is an apocalyptic number.
29080431 is a deficient number, since it is larger than the sum of its proper divisors (16269969).
29080431 is a wasteful number, since it uses less digits than its factorization.
29080431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 56715 (or 56709 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 27.
The square root of 29080431 is about 5392.6274672000. The cubic root of 29080431 is about 307.5154543095.
The spelling of 29080431 in words is "twenty-nine million, eighty thousand, four hundred thirty-one".
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