Base | Representation |
---|---|
bin | 111011101001110000… |
… | …1001111001010001000 |
3 | 110020122200221022111120 |
4 | 1313103201033022020 |
5 | 4044323301211000 |
6 | 134503302355240 |
7 | 12153335316441 |
oct | 1672341171210 |
9 | 406580838446 |
10 | 128102757000 |
11 | 4a367737409 |
12 | 209b142bb20 |
13 | c106ac7b3a |
14 | 62b351c2c8 |
15 | 34eb4ec6a0 |
hex | 1dd384f288 |
128102757000 has 256 divisors, whose sum is σ = 413750937600. Its totient is φ = 32964480000.
The previous prime is 128102756923. The next prime is 128102757007. The reversal of 128102757000 is 757201821.
It is not an unprimeable number, because it can be changed into a prime (128102757007) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36175230 + ... + 36178770.
It is an arithmetic number, because the mean of its divisors is an integer number (1616214600).
Almost surely, 2128102757000 is an apocalyptic number.
128102757000 is a gapful number since it is divisible by the number (10) 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 128102757000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206875468800).
128102757000 is an abundant number, since it is smaller than the sum of its proper divisors (285648180600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128102757000 is a wasteful number, since it uses less digits than its factorization.
128102757000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3985 (or 3971 counting only the distinct ones).
The product of its (nonzero) digits is 7840, while the sum is 33.
Adding to 128102757000 its reverse (757201821), we get a palindrome (128859958821).
The spelling of 128102757000 in words is "one hundred twenty-eight billion, one hundred two million, seven hundred fifty-seven thousand".
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