Base | Representation |
---|---|
bin | 11010001101111101… |
… | …000001001001010000 |
3 | 2200122220210121200000 |
4 | 122031331001021100 |
5 | 430123223333304 |
6 | 20533233530000 |
7 | 2014421560500 |
oct | 321575011120 |
9 | 80586717600 |
10 | 28151386704 |
11 | 10a367a6551 |
12 | 5557a13900 |
13 | 28683b3b8c |
14 | 1510b19a00 |
15 | aeb6bb939 |
hex | 68df41250 |
28151386704 has 360 divisors, whose sum is σ = 95999668128. Its totient is φ = 7962312960.
The previous prime is 28151386699. The next prime is 28151386771. The reversal of 28151386704 is 40768315182.
It is a self number, because there is not a number n which added to its sum of digits gives 28151386704.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 20384094 + ... + 20385474.
Almost surely, 228151386704 is an apocalyptic number.
28151386704 is a gapful number since it is divisible by the number (24) 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 28151386704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47999834064).
28151386704 is an abundant number, since it is smaller than the sum of its proper divisors (67848281424).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28151386704 is a wasteful number, since it uses less digits than its factorization.
28151386704 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1525 (or 1500 counting only the distinct ones).
The product of its (nonzero) digits is 322560, while the sum is 45.
The spelling of 28151386704 in words is "twenty-eight billion, one hundred fifty-one million, three hundred eighty-six thousand, seven hundred four".
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