Base | Representation |
---|---|
bin | 11011001101011001… |
… | …110100101100000111 |
3 | 2210102002212121202220 |
4 | 123031121310230013 |
5 | 434313232334341 |
6 | 21231022103423 |
7 | 2052666034140 |
oct | 331531645407 |
9 | 83362777686 |
10 | 29215902471 |
11 | 11432684a48 |
12 | 57b441ab73 |
13 | 29a7abc572 |
14 | 15b225cac7 |
15 | b5ed93a66 |
hex | 6cd674b07 |
29215902471 has 16 divisors (see below), whose sum is σ = 44588944128. Its totient is φ = 16668748800.
The previous prime is 29215902439. The next prime is 29215902491. The reversal of 29215902471 is 17420951292.
It is not a de Polignac number, because 29215902471 - 25 = 29215902439 is a prime.
It is a super-3 number, since 3×292159024713 (a number of 32 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (29215902491) 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, 1071745 + ... + 1098666.
It is an arithmetic number, because the mean of its divisors is an integer number (2786809008).
Almost surely, 229215902471 is an apocalyptic number.
29215902471 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
29215902471 is a deficient number, since it is larger than the sum of its proper divisors (15373041657).
29215902471 is a wasteful number, since it uses less digits than its factorization.
29215902471 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2171062.
The product of its (nonzero) digits is 90720, while the sum is 42.
The spelling of 29215902471 in words is "twenty-nine billion, two hundred fifteen million, nine hundred two thousand, four hundred seventy-one".
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