Base | Representation |
---|---|
bin | 11011001101001110… |
… | …001110001000111011 |
3 | 2210101220011002122100 |
4 | 123031032032020323 |
5 | 434311443022422 |
6 | 21230432554443 |
7 | 2052631135632 |
oct | 331516161073 |
9 | 83356132570 |
10 | 29212860987 |
11 | 11430997922 |
12 | 57b33b2a23 |
13 | 29a729607b |
14 | 15b1aaa519 |
15 | b5e9927ac |
hex | 6cd38e23b |
29212860987 has 12 divisors (see below), whose sum is σ = 42200563600. Its totient is φ = 19473298128.
The previous prime is 29212860967. The next prime is 29212861003. The reversal of 29212860987 is 78906821292.
29212860987 is a `hidden beast` number, since 2 + 9 + 2 + 1 + 28 + 609 + 8 + 7 = 666.
It is not a de Polignac number, because 29212860987 - 215 = 29212828219 is a prime.
It is a super-2 number, since 2×292128609872 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (29212860907) 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 11 ways as a sum of consecutive naturals, for example, 63487 + ... + 249912.
Almost surely, 229212860987 is an apocalyptic number.
29212860987 is a deficient number, since it is larger than the sum of its proper divisors (12987702613).
29212860987 is a wasteful number, since it uses less digits than its factorization.
29212860987 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 323762 (or 323759 counting only the distinct ones).
The product of its (nonzero) digits is 1741824, while the sum is 54.
The spelling of 29212860987 in words is "twenty-nine billion, two hundred twelve million, eight hundred sixty thousand, nine hundred eighty-seven".
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