Base | Representation |
---|---|
bin | 1110010011101001… |
… | …00101100001011000 |
3 | 201211022002211222100 |
4 | 13021310211201120 |
5 | 111212312113023 |
6 | 3310101523400 |
7 | 361225122651 |
oct | 71164454130 |
9 | 21738084870 |
10 | 7680972888 |
11 | 3291788686 |
12 | 15a4413560 |
13 | 955412994 |
14 | 52c180528 |
15 | 2ee4cdc43 |
hex | 1c9d25858 |
7680972888 has 48 divisors (see below), whose sum is σ = 20877788880. Its totient is φ = 2551074624.
The previous prime is 7680972881. The next prime is 7680972899. The reversal of 7680972888 is 8882790867.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7680972881) 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, 172620 + ... + 212507.
It is an arithmetic number, because the mean of its divisors is an integer number (434953935).
Almost surely, 27680972888 is an apocalyptic number.
It is an amenable number.
7680972888 is an abundant number, since it is smaller than the sum of its proper divisors (13196815992).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7680972888 is a wasteful number, since it uses less digits than its factorization.
7680972888 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 385416 (or 385409 counting only the distinct ones).
The product of its (nonzero) digits is 21676032, while the sum is 63.
The square root of 7680972888 is about 87641.1597823762. The cubic root of 7680972888 is about 1973.0529666458.
The spelling of 7680972888 in words is "seven billion, six hundred eighty million, nine hundred seventy-two thousand, eight hundred eighty-eight".
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