Base | Representation |
---|---|
bin | 110101010110… |
… | …0101110000000 |
3 | 1221122001012221 |
4 | 1222230232000 |
5 | 24130023212 |
6 | 2435300424 |
7 | 456513310 |
oct | 152545600 |
9 | 57561187 |
10 | 27970432 |
11 | 14874666 |
12 | 944a714 |
13 | 5a44269 |
14 | 3a01440 |
15 | 26c7807 |
hex | 1aacb80 |
27970432 has 128 divisors (see below), whose sum is σ = 70502400. Its totient is φ = 10782720.
The previous prime is 27970427. The next prime is 27970469. The reversal of 27970432 is 23407972.
It is a tau number, because it is divible by the number of its divisors (128).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 527718 + ... + 527770.
It is an arithmetic number, because the mean of its divisors is an integer number (550800).
Almost surely, 227970432 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 27970432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35251200).
27970432 is an abundant number, since it is smaller than the sum of its proper divisors (42531968).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
27970432 is a wasteful number, since it uses less digits than its factorization.
27970432 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 124 (or 112 counting only the distinct ones).
The product of its (nonzero) digits is 21168, while the sum is 34.
The square root of 27970432 is about 5288.7079707619. The cubic root of 27970432 is about 303.5519716091.
The spelling of 27970432 in words is "twenty-seven million, nine hundred seventy thousand, four hundred thirty-two".
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