Base | Representation |
---|---|
bin | 100000010100011111… |
… | …0101000010101000001 |
3 | 20122011002111002011010 |
4 | 1000220332220111001 |
5 | 2114121141432424 |
6 | 51515104311133 |
7 | 5004653424354 |
oct | 1005076502501 |
9 | 218132432133 |
10 | 69406983489 |
11 | 27487483a88 |
12 | 115503124a9 |
13 | 67116255cc |
14 | 3505d6a29b |
15 | 1c13522229 |
hex | 1028fa8541 |
69406983489 has 16 divisors (see below), whose sum is σ = 97475129600. Its totient is φ = 43808170896.
The previous prime is 69406983439. The next prime is 69406983493. The reversal of 69406983489 is 98438960496.
It is not a de Polignac number, because 69406983489 - 27 = 69406983361 is a prime.
It is a super-2 number, since 2×694069834892 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (69406983439) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295579 + ... + 475584.
It is an arithmetic number, because the mean of its divisors is an integer number (6092195600).
Almost surely, 269406983489 is an apocalyptic number.
It is an amenable number.
69406983489 is a deficient number, since it is larger than the sum of its proper divisors (28068146111).
69406983489 is a wasteful number, since it uses less digits than its factorization.
69406983489 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 772764.
The product of its (nonzero) digits is 80621568, while the sum is 66.
The spelling of 69406983489 in words is "sixty-nine billion, four hundred six million, nine hundred eighty-three thousand, four hundred eighty-nine".
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