Base | Representation |
---|---|
bin | 1101010001110000… |
… | …00100110100001010 |
3 | 200101210001002010120 |
4 | 12220320010310022 |
5 | 104044312124440 |
6 | 3135154524110 |
7 | 341434014660 |
oct | 65070046412 |
9 | 20353032116 |
10 | 7128239370 |
11 | 302878381a |
12 | 146b296636 |
13 | 897a56225 |
14 | 4b89bcc30 |
15 | 2babeadd0 |
hex | 1a8e04d0a |
7128239370 has 64 divisors (see below), whose sum is σ = 19558748160. Its totient is φ = 1628728128.
The previous prime is 7128239359. The next prime is 7128239401. The reversal of 7128239370 is 739328217.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 907279 + ... + 915101.
It is an arithmetic number, because the mean of its divisors is an integer number (305605440).
Almost surely, 27128239370 is an apocalyptic number.
7128239370 is a gapful number since it is divisible by the number (70) formed by its first and last digit.
7128239370 is an abundant number, since it is smaller than the sum of its proper divisors (12430508790).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7128239370 is a wasteful number, since it uses less digits than its factorization.
7128239370 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12179.
The product of its (nonzero) digits is 127008, while the sum is 42.
The square root of 7128239370 is about 84428.9012720170. The cubic root of 7128239370 is about 1924.5421406153.
The spelling of 7128239370 in words is "seven billion, one hundred twenty-eight million, two hundred thirty-nine thousand, three hundred seventy".
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