Base | Representation |
---|---|
bin | 100000000100010001… |
… | …1000000001011000010 |
3 | 20120202011122021001110 |
4 | 1000020203000023002 |
5 | 2112012343321320 |
6 | 51345110144150 |
7 | 4655325511311 |
oct | 1001043001302 |
9 | 216664567043 |
10 | 68862870210 |
11 | 27228327692 |
12 | 1141a052056 |
13 | 66559966a4 |
14 | 34939b0278 |
15 | 1bd08935e0 |
hex | 10088c02c2 |
68862870210 has 128 divisors (see below), whose sum is σ = 180169482240. Its totient is φ = 16780608000.
The previous prime is 68862870187. The next prime is 68862870217. The reversal of 68862870210 is 1207826886.
It is a self number, because there is not a number n which added to its sum of digits gives 68862870210.
It is not an unprimeable number, because it can be changed into a prime (68862870217) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5524485 + ... + 5536935.
It is an arithmetic number, because the mean of its divisors is an integer number (1407574080).
Almost surely, 268862870210 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68862870210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90084741120).
68862870210 is an abundant number, since it is smaller than the sum of its proper divisors (111306612030).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68862870210 is a wasteful number, since it uses less digits than its factorization.
68862870210 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12824.
The product of its (nonzero) digits is 516096, while the sum is 48.
The spelling of 68862870210 in words is "sixty-eight billion, eight hundred sixty-two million, eight hundred seventy thousand, two hundred ten".
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