Base | Representation |
---|---|
bin | 101000100010110111… |
… | …1110000101110100100 |
3 | 22022202000121120212202 |
4 | 1101011233300232210 |
5 | 2411304242303210 |
6 | 103555453234032 |
7 | 6201443326544 |
oct | 1210557605644 |
9 | 268660546782 |
10 | 87069494180 |
11 | 33a20506759 |
12 | 14a5b492918 |
13 | 8297960276 |
14 | 42dda25324 |
15 | 23e8e639a5 |
hex | 1445bf0ba4 |
87069494180 has 12 divisors (see below), whose sum is σ = 182845937820. Its totient is φ = 34827797664.
The previous prime is 87069494143. The next prime is 87069494203. The reversal of 87069494180 is 8149496078.
It can be written as a sum of positive squares in 2 ways, for example, as 69001833124 + 18067661056 = 262682^2 + 134416^2 .
It is a super-2 number, since 2×870694941802 (a number of 23 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2176737335 + ... + 2176737374.
It is an arithmetic number, because the mean of its divisors is an integer number (15237161485).
Almost surely, 287069494180 is an apocalyptic number.
It is an amenable number.
87069494180 is an abundant number, since it is smaller than the sum of its proper divisors (95776443640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87069494180 is a wasteful number, since it uses less digits than its factorization.
87069494180 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4353474718 (or 4353474716 counting only the distinct ones).
The product of its (nonzero) digits is 3483648, while the sum is 56.
The spelling of 87069494180 in words is "eighty-seven billion, sixty-nine million, four hundred ninety-four thousand, one hundred eighty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •