Base | Representation |
---|---|
bin | 111011101010111011… |
… | …0001100010011010010 |
3 | 110020202102102010221200 |
4 | 1313111312030103102 |
5 | 4044413300223004 |
6 | 134511215332030 |
7 | 12154321240335 |
oct | 1672566142322 |
9 | 406672363850 |
10 | 128141804754 |
11 | 4a387787587 |
12 | 20a02521016 |
13 | c111c1a112 |
14 | 62b87a461c |
15 | 34eeb62239 |
hex | 1dd5d8c4d2 |
128141804754 has 12 divisors (see below), whose sum is σ = 277640577006. Its totient is φ = 42713934912.
The previous prime is 128141804677. The next prime is 128141804759. The reversal of 128141804754 is 457408141821.
It can be written as a sum of positive squares in only one way, i.e., 96289193025 + 31852611729 = 310305^2 + 178473^2 .
It is a super-2 number, since 2×1281418047542 (a number of 23 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (128141804759) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3559494559 + ... + 3559494594.
Almost surely, 2128141804754 is an apocalyptic number.
128141804754 is an abundant number, since it is smaller than the sum of its proper divisors (149498772252).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128141804754 is a wasteful number, since it uses less digits than its factorization.
128141804754 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7118989161 (or 7118989158 counting only the distinct ones).
The product of its (nonzero) digits is 286720, while the sum is 45.
The spelling of 128141804754 in words is "one hundred twenty-eight billion, one hundred forty-one million, eight hundred four thousand, seven hundred fifty-four".
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