Base | Representation |
---|---|
bin | 110111100011… |
… | …1110100011101 |
3 | 2000210221212101 |
4 | 1233013310131 |
5 | 24424130023 |
6 | 2520205101 |
7 | 502413103 |
oct | 157076435 |
9 | 60727771 |
10 | 29130013 |
11 | 154968a0 |
12 | 9909791 |
13 | 605bcc3 |
14 | 3c23c73 |
15 | 28561ad |
hex | 1bc7d1d |
29130013 has 4 divisors (see below), whose sum is σ = 31778208. Its totient is φ = 26481820.
The previous prime is 29129999. The next prime is 29130041. The reversal of 29130013 is 31003192.
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.
It is a cyclic number.
It is not a de Polignac number, because 29130013 - 25 = 29129981 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (29130043) 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, 1324081 + ... + 1324102.
It is an arithmetic number, because the mean of its divisors is an integer number (7944552).
Almost surely, 229130013 is an apocalyptic number.
It is an amenable number.
29130013 is a deficient number, since it is larger than the sum of its proper divisors (2648195).
29130013 is a wasteful number, since it uses less digits than its factorization.
29130013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2648194.
The product of its (nonzero) digits is 162, while the sum is 19.
The square root of 29130013 is about 5397.2227117287. Note that the first 3 decimals coincide. The cubic root of 29130013 is about 307.6901258836.
The spelling of 29130013 in words is "twenty-nine million, one hundred thirty thousand, thirteen".
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