Base | Representation |
---|---|
bin | 110111100101… |
… | …1101100101101 |
3 | 2000211202122211 |
4 | 1233023230231 |
5 | 24430132101 |
6 | 2520410421 |
7 | 502510321 |
oct | 157135455 |
9 | 60752584 |
10 | 29145901 |
11 | 154a7824 |
12 | 9916a11 |
13 | 60662c5 |
14 | 3c29981 |
15 | 285ac51 |
hex | 1bcbb2d |
29145901 has 4 divisors (see below), whose sum is σ = 29158272. Its totient is φ = 29133532.
The previous prime is 29145863. The next prime is 29145913. The reversal of 29145901 is 10954192.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is not a de Polignac number, because 29145901 - 213 = 29137709 is a prime.
It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (29145001) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1435 + ... + 7768.
It is an arithmetic number, because the mean of its divisors is an integer number (7289568).
Almost surely, 229145901 is an apocalyptic number.
It is an amenable number.
29145901 is a deficient number, since it is larger than the sum of its proper divisors (12371).
29145901 is an equidigital number, since it uses as much as digits as its factorization.
29145901 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12370.
The product of its (nonzero) digits is 3240, while the sum is 31.
The square root of 29145901 is about 5398.6943791995. The cubic root of 29145901 is about 307.7460555098.
The spelling of 29145901 in words is "twenty-nine million, one hundred forty-five thousand, nine hundred one".
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