Base | Representation |
---|---|
bin | 1110100101001011… |
… | …00010011110000000 |
3 | 202012112210210001000 |
4 | 13102211202132000 |
5 | 112012433220133 |
6 | 3332433412000 |
7 | 364662045660 |
oct | 72245423600 |
9 | 22175723030 |
10 | 7828023168 |
11 | 3357795739 |
12 | 162570a000 |
13 | 979a1b094 |
14 | 5438dc1a0 |
15 | 30c379413 |
hex | 1d2962780 |
7828023168 has 128 divisors (see below), whose sum is σ = 26404128000. Its totient is φ = 2236571136.
The previous prime is 7828023127. The next prime is 7828023169. The reversal of 7828023168 is 8613208287.
It is a tau number, because it is divible by the number of its divisors (128).
It is a super-2 number, since 2×78280231682 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7828023169) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137598 + ... + 185981.
It is an arithmetic number, because the mean of its divisors is an integer number (206282250).
Almost surely, 27828023168 is an apocalyptic number.
It is an amenable number.
7828023168 is an abundant number, since it is smaller than the sum of its proper divisors (18576104832).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7828023168 is a wasteful number, since it uses less digits than its factorization.
7828023168 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 323609 (or 323591 counting only the distinct ones).
The product of its (nonzero) digits is 258048, while the sum is 45.
The square root of 7828023168 is about 88476.1163704646. The cubic root of 7828023168 is about 1985.5646584592.
The spelling of 7828023168 in words is "seven billion, eight hundred twenty-eight million, twenty-three thousand, one hundred sixty-eight".
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