Base | Representation |
---|---|
bin | 100110010011110011110110… |
… | …101011010101011011000000 |
3 | 211002120012200210002222200001 |
4 | 212103303312223111123000 |
5 | 134040443103101030220 |
6 | 1354201525024005344 |
7 | 50326535536014361 |
oct | 4623636653253300 |
9 | 732505623088601 |
10 | 168487115642560 |
11 | 49759a9136a520 |
12 | 16a91b22160854 |
13 | 73023612c40c0 |
14 | 2d86b69b85b68 |
15 | 1472b0ac0d80a |
hex | 993cf6ad56c0 |
168487115642560 has 224 divisors, whose sum is σ = 471381013438272. Its totient is φ = 56551579729920.
The previous prime is 168487115642537. The next prime is 168487115642563. The reversal of 168487115642560 is 65246511784861.
It is a Harshad number since it is a multiple of its sum of digits (64).
It is a junction number, because it is equal to n+sod(n) for n = 168487115642492 and 168487115642501.
It is not an unprimeable number, because it can be changed into a prime (168487115642563) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 791221222 + ... + 791434138.
It is an arithmetic number, because the mean of its divisors is an integer number (2104379524278).
Almost surely, 2168487115642560 is an apocalyptic number.
168487115642560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 168487115642560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235690506719136).
168487115642560 is an abundant number, since it is smaller than the sum of its proper divisors (302893897795712).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
168487115642560 is a wasteful number, since it uses less digits than its factorization.
168487115642560 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 230251 (or 230241 counting only the distinct ones).
The product of its (nonzero) digits is 77414400, while the sum is 64.
The spelling of 168487115642560 in words is "one hundred sixty-eight trillion, four hundred eighty-seven billion, one hundred fifteen million, six hundred forty-two thousand, five hundred sixty".
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