Base | Representation |
---|---|
bin | 1011101001110100… |
… | …1000101101000000 |
3 | 22002000021000200021 |
4 | 2322131020231000 |
5 | 22401304400000 |
6 | 1234224103224 |
7 | 140343155422 |
oct | 27235105500 |
9 | 8060230607 |
10 | 3128200000 |
11 | 1365872a62 |
12 | 733764b14 |
13 | 3ab11c923 |
14 | 219658812 |
15 | 13496911a |
hex | ba748b40 |
3128200000 has 84 divisors (see below), whose sum is σ = 7759401804. Its totient is φ = 1251200000.
The previous prime is 3128199979. The next prime is 3128200007. The reversal of 3128200000 is 28213.
It is a happy number.
It can be written as a sum of positive squares in 6 ways, for example, as 1545433344 + 1582766656 = 39312^2 + 39784^2 .
It is a sliding number, since 3128200000 = 3200000 + 3125000000 and 1/3200000 + 1/3125000000 = 0.0000003128200000.
It is a Harshad number since it is a multiple of its sum of digits (16).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3128200007) 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, 192180 + ... + 207820.
It is an arithmetic number, because the mean of its divisors is an integer number (92373831).
Almost surely, 23128200000 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 3128200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3879700902).
3128200000 is an abundant number, since it is smaller than the sum of its proper divisors (4631201804).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3128200000 is an frugal number, since it uses more digits than its factorization.
3128200000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15678 (or 15648 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 16.
The square root of 3128200000 is about 55930.3137842083. The cubic root of 3128200000 is about 1462.5077312275.
Adding to 3128200000 its reverse (28213), we get a palindrome (3128228213).
The spelling of 3128200000 in words is "three billion, one hundred twenty-eight million, two hundred thousand".
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