Base | Representation |
---|---|
bin | 1000000111111… |
… | …10111001001110 |
3 | 11202020112012212 |
4 | 10003332321032 |
5 | 114421343120 |
6 | 10432430422 |
7 | 1455201350 |
oct | 403767116 |
9 | 152215185 |
10 | 68152910 |
11 | 3551a321 |
12 | 1a9a8412 |
13 | 11172b87 |
14 | 90a10d0 |
15 | 5eb36c5 |
hex | 40fee4e |
68152910 has 32 divisors (see below), whose sum is σ = 146299392. Its totient is φ = 22350240.
The previous prime is 68152837. The next prime is 68152939. The reversal of 68152910 is 1925186.
It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19556 + ... + 22775.
It is an arithmetic number, because the mean of its divisors is an integer number (4571856).
Almost surely, 268152910 is an apocalyptic number.
68152910 is an abundant number, since it is smaller than the sum of its proper divisors (78146482).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68152910 is a wasteful number, since it uses less digits than its factorization.
68152910 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 42368.
The product of its (nonzero) digits is 4320, while the sum is 32.
The square root of 68152910 is about 8255.4775755252. The cubic root of 68152910 is about 408.4712252143.
The spelling of 68152910 in words is "sixty-eight million, one hundred fifty-two thousand, nine hundred ten".
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