Base | Representation |
---|---|
bin | 1000001101011… |
… | …01111101111010 |
3 | 11210120221220010 |
4 | 10012231331322 |
5 | 120112320020 |
6 | 10500042350 |
7 | 1464246126 |
oct | 406557572 |
9 | 153527803 |
10 | 68870010 |
11 | 3596a070 |
12 | 1b0933b6 |
13 | 113643b1 |
14 | 920a586 |
15 | 60a5de0 |
hex | 41adf7a |
68870010 has 32 divisors (see below), whose sum is σ = 180315072. Its totient is φ = 16695680.
The previous prime is 68869991. The next prime is 68870029. The reversal of 68870010 is 1007886.
It is an interprime number because it is at equal distance from previous prime (68869991) and next prime (68870029).
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 68870010.
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, 104019 + ... + 104678.
It is an arithmetic number, because the mean of its divisors is an integer number (5634846).
Almost surely, 268870010 is an apocalyptic number.
68870010 is an abundant number, since it is smaller than the sum of its proper divisors (111445062).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68870010 is a wasteful number, since it uses less digits than its factorization.
68870010 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 208718.
The product of its (nonzero) digits is 2688, while the sum is 30.
The square root of 68870010 is about 8298.7956957621. The cubic root of 68870010 is about 409.8988646047.
Adding to 68870010 its reverse (1007886), we get a palindrome (69877896).
It can be divided in two parts, 68 and 870010, that added together give a palindrome (870078).
The spelling of 68870010 in words is "sixty-eight million, eight hundred seventy thousand, ten".
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