Base | Representation |
---|---|
bin | 10100000011011000000… |
… | …10011100101100000001 |
3 | 2102212110002212211201111 |
4 | 22001230002130230001 |
5 | 42242041340122411 |
6 | 1244305310403321 |
7 | 100531146554554 |
oct | 12015402345401 |
9 | 2385402784644 |
10 | 689007348481 |
11 | 24622a75a931 |
12 | b164b200541 |
13 | 4cc85c1630a |
14 | 254c33c869b |
15 | 12dc8eba721 |
hex | a06c09cb01 |
689007348481 has 8 divisors (see below), whose sum is σ = 691153966944. Its totient is φ = 686861831040.
The previous prime is 689007348467. The next prime is 689007348539. The reversal of 689007348481 is 184843700986.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 689007348481 - 213 = 689007340289 is a prime.
It is a super-2 number, since 2×6890073484812 (a number of 24 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (689007348181) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 987270 + ... + 1533856.
It is an arithmetic number, because the mean of its divisors is an integer number (86394245868).
Almost surely, 2689007348481 is an apocalyptic number.
It is an amenable number.
689007348481 is a deficient number, since it is larger than the sum of its proper divisors (2146618463).
689007348481 is a wasteful number, since it uses less digits than its factorization.
689007348481 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 550511.
The product of its (nonzero) digits is 9289728, while the sum is 58.
The spelling of 689007348481 in words is "six hundred eighty-nine billion, seven million, three hundred forty-eight thousand, four hundred eighty-one".
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