Base | Representation |
---|---|
bin | 1000111001110110… |
… | …0111011010010000 |
3 | 20011120110002121100 |
4 | 2032131213122100 |
5 | 14343333101042 |
6 | 1033100424400 |
7 | 113141520000 |
oct | 21635473220 |
9 | 6146402540 |
10 | 2390128272 |
11 | 101718a824 |
12 | 568548100 |
13 | 2c12405ac |
14 | 189610000 |
15 | dec7624c |
hex | 8e767690 |
2390128272 has 300 divisors, whose sum is σ = 8091259904. Its totient is φ = 657901440.
The previous prime is 2390128261. The next prime is 2390128357. The reversal of 2390128272 is 2728210932.
2390128272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×23901282722 = 11425426313227411968, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is an unprimeable number.
It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 10717953 + ... + 10718175.
Almost surely, 22390128272 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 2390128272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4045629952).
2390128272 is an abundant number, since it is smaller than the sum of its proper divisors (5701131632).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2390128272 is a wasteful number, since it uses less digits than its factorization.
2390128272 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 296 (or 266 counting only the distinct ones).
The product of its (nonzero) digits is 24192, while the sum is 36.
The square root of 2390128272 is about 48888.9381353287. The cubic root of 2390128272 is about 1337.0276942081.
The spelling of 2390128272 in words is "two billion, three hundred ninety million, one hundred twenty-eight thousand, two hundred seventy-two".
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