Base | Representation |
---|---|
bin | 11010101001100011… |
… | …110010100101000000 |
3 | 2201212012022000100200 |
4 | 122221203302211000 |
5 | 432100310113423 |
6 | 21051220445200 |
7 | 2032044352500 |
oct | 325143624500 |
9 | 81765260320 |
10 | 28614535488 |
11 | 11154183040 |
12 | 5666b49800 |
13 | 2910335706 |
14 | 155643ba00 |
15 | b271a5d43 |
hex | 6a98f2940 |
28614535488 has 1008 divisors, whose sum is σ = 111229956864. Its totient is φ = 6944071680.
The previous prime is 28614535487. The next prime is 28614535489. The reversal of 28614535488 is 88453541682.
28614535488 is a `hidden beast` number, since 2 + 8 + 61 + 4 + 535 + 48 + 8 = 666.
It is an interprime number because it is at equal distance from previous prime (28614535487) and next prime (28614535489).
It is a tau number, because it is divible by the number of its divisors (1008).
It is a super-2 number, since 2×286145354882 (a number of 22 digits) contains 22 as substring.
Its product of digits (7372800) is a multiple of the sum of its prime divisors (160).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28614535487) by changing a digit.
It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 539896870 + ... + 539896922.
Almost surely, 228614535488 is an apocalyptic number.
28614535488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 28614535488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55614978432).
28614535488 is an abundant number, since it is smaller than the sum of its proper divisors (82615421376).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28614535488 is a wasteful number, since it uses less digits than its factorization.
28614535488 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 180 (or 160 counting only the distinct ones).
The product of its digits is 7372800, while the sum is 54.
The spelling of 28614535488 in words is "twenty-eight billion, six hundred fourteen million, five hundred thirty-five thousand, four hundred eighty-eight".
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