Base | Representation |
---|---|
bin | 10010111110001… |
… | …00010101010000 |
3 | 102002110002212200 |
4 | 21133010111100 |
5 | 311214423102 |
6 | 23442523200 |
7 | 3641442354 |
oct | 1137042520 |
9 | 362402780 |
10 | 159139152 |
11 | 81914667 |
12 | 45366500 |
13 | 26c7b9a3 |
14 | 171c7464 |
15 | de8751c |
hex | 97c4550 |
159139152 has 60 divisors (see below), whose sum is σ = 448418100. Its totient is φ = 52683264.
The previous prime is 159139121. The next prime is 159139157. The reversal of 159139152 is 251931951.
It can be written as a sum of positive squares in 2 ways, for example, as 71978256 + 87160896 = 8484^2 + 9336^2 .
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (159139157) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17748 + ... + 25164.
It is an arithmetic number, because the mean of its divisors is an integer number (7473635).
Almost surely, 2159139152 is an apocalyptic number.
159139152 is a gapful number since it is divisible by the number (12) 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 159139152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224209050).
159139152 is an abundant number, since it is smaller than the sum of its proper divisors (289278948).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
159139152 is a wasteful number, since it uses less digits than its factorization.
159139152 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7580 (or 7571 counting only the distinct ones).
The product of its digits is 12150, while the sum is 36.
The square root of 159139152 is about 12615.0367419203. The cubic root of 159139152 is about 541.9081465418.
The spelling of 159139152 in words is "one hundred fifty-nine million, one hundred thirty-nine thousand, one hundred fifty-two".
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