Base | Representation |
---|---|
bin | 111110001000000111… |
… | …010100100101111010 |
3 | 20101012000010010101210 |
4 | 332020013110211322 |
5 | 2043104240131140 |
6 | 50351214423550 |
7 | 4551042515343 |
oct | 761007244572 |
9 | 211160103353 |
10 | 66708130170 |
11 | 263220005a0 |
12 | 10b18501bb6 |
13 | 63a1450a96 |
14 | 332b7550ca |
15 | 1b06616d80 |
hex | f881d497a |
66708130170 has 32 divisors (see below), whose sum is σ = 174654014400. Its totient is φ = 16171667840.
The previous prime is 66708130133. The next prime is 66708130171. The reversal of 66708130170 is 7103180766.
66708130170 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not an unprimeable number, because it can be changed into a prime (66708130171) 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, 101072595 + ... + 101073254.
It is an arithmetic number, because the mean of its divisors is an integer number (5457937950).
Almost surely, 266708130170 is an apocalyptic number.
66708130170 is an abundant number, since it is smaller than the sum of its proper divisors (107945884230).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
66708130170 is a wasteful number, since it uses less digits than its factorization.
66708130170 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 202145870.
The product of its (nonzero) digits is 42336, while the sum is 39.
It can be divided in two parts, 66708 and 130170, that added together give a triangular number (196878 = T627).
The spelling of 66708130170 in words is "sixty-six billion, seven hundred eight million, one hundred thirty thousand, one hundred seventy".
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