Base | Representation |
---|---|
bin | 111000000011… |
… | …0010010111111 |
3 | 2001021221220101 |
4 | 1300012102333 |
5 | 30010322134 |
6 | 2525501531 |
7 | 504530143 |
oct | 160062277 |
9 | 61257811 |
10 | 29385919 |
11 | 15651092 |
12 | 9a118a7 |
13 | 611b624 |
14 | 3c8d223 |
15 | 28a6e14 |
hex | 1c064bf |
29385919 has 4 divisors (see below), whose sum is σ = 29398320. Its totient is φ = 29373520.
The previous prime is 29385907. The next prime is 29385943. The reversal of 29385919 is 91958392.
It is a semiprime because it is the product of two primes, 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 29385919 - 29 = 29385407 is a prime.
It is a super-2 number, since 2×293859192 = 1727064470949122, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (29385949) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1414 + ... + 7795.
It is an arithmetic number, because the mean of its divisors is an integer number (7349580).
Almost surely, 229385919 is an apocalyptic number.
29385919 is a deficient number, since it is larger than the sum of its proper divisors (12401).
29385919 is an equidigital number, since it uses as much as digits as its factorization.
29385919 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12400.
The product of its digits is 174960, while the sum is 46.
The square root of 29385919 is about 5420.8780654060. The cubic root of 29385919 is about 308.5885153780.
The spelling of 29385919 in words is "twenty-nine million, three hundred eighty-five thousand, nine hundred nineteen".
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