Base | Representation |
---|---|
bin | 111011110111101101… |
… | …1000111110011101000 |
3 | 110021212022212021000110 |
4 | 1313233123013303220 |
5 | 4101303123303242 |
6 | 135021544534320 |
7 | 12201051516624 |
oct | 1675733076350 |
9 | 407768767013 |
10 | 128570916072 |
11 | 4a587a26235 |
12 | 20b021813a0 |
13 | c17cab2041 |
14 | 6319786184 |
15 | 352767639c |
hex | 1def6c7ce8 |
128570916072 has 64 divisors (see below), whose sum is σ = 329004910080. Its totient is φ = 41847244992.
The previous prime is 128570916043. The next prime is 128570916107. The reversal of 128570916072 is 270619075821.
128570916072 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3622203 + ... + 3657525.
It is an arithmetic number, because the mean of its divisors is an integer number (5140701720).
Almost surely, 2128570916072 is an apocalyptic number.
128570916072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
128570916072 is an abundant number, since it is smaller than the sum of its proper divisors (200433994008).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128570916072 is a wasteful number, since it uses less digits than its factorization.
128570916072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38902 (or 38898 counting only the distinct ones).
The product of its (nonzero) digits is 423360, while the sum is 48.
The spelling of 128570916072 in words is "one hundred twenty-eight billion, five hundred seventy million, nine hundred sixteen thousand, seventy-two".
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