Base | Representation |
---|---|
bin | 11001111101001011… |
… | …010101001001100000 |
3 | 2122221022011221010220 |
4 | 121331023111021200 |
5 | 424034200112414 |
6 | 20445301123040 |
7 | 2004433314345 |
oct | 317513251140 |
9 | 78838157126 |
10 | 27869925984 |
11 | 1090193498a |
12 | 54996b9480 |
13 | 2821ca7684 |
14 | 14c55b07cc |
15 | ad1b20ca9 |
hex | 67d2d5260 |
27869925984 has 48 divisors (see below), whose sum is σ = 74160746352. Its totient is φ = 9162713088.
The previous prime is 27869925977. The next prime is 27869926027. The reversal of 27869925984 is 48952996872.
It is a tau number, because it is divible by the number of its divisors (48).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1981429 + ... + 1995444.
It is an arithmetic number, because the mean of its divisors is an integer number (1545015549).
Almost surely, 227869925984 is an apocalyptic number.
27869925984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.
It is an amenable number.
27869925984 is an abundant number, since it is smaller than the sum of its proper divisors (46290820368).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
27869925984 is a wasteful number, since it uses less digits than its factorization.
27869925984 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3976959 (or 3976951 counting only the distinct ones).
The product of its digits is 156764160, while the sum is 69.
The spelling of 27869925984 in words is "twenty-seven billion, eight hundred sixty-nine million, nine hundred twenty-five thousand, nine hundred eighty-four".
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