Base | Representation |
---|---|
bin | 1000001110011… |
… | …00100010110000 |
3 | 11210211022200120 |
4 | 10013030202300 |
5 | 120130321443 |
6 | 10502450240 |
7 | 1465310220 |
oct | 407144260 |
9 | 153738616 |
10 | 68995248 |
11 | 35a45173 |
12 | 1b133980 |
13 | 113a93ba |
14 | 9240080 |
15 | 60cd083 |
hex | 41cc8b0 |
68995248 has 160 divisors (see below), whose sum is σ = 221128704. Its totient is φ = 18087936.
The previous prime is 68995247. The next prime is 68995253. The reversal of 68995248 is 84259986.
It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (51).
It is a self number, because there is not a number n which added to its sum of digits gives 68995248.
It is not an unprimeable number, because it can be changed into a prime (68995247) 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, 268336 + ... + 268592.
Almost surely, 268995248 is an apocalyptic number.
68995248 is a gapful number since it is divisible by the number (68) 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 68995248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110564352).
68995248 is an abundant number, since it is smaller than the sum of its proper divisors (152133456).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68995248 is a wasteful number, since it uses less digits than its factorization.
68995248 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 339 (or 333 counting only the distinct ones).
The product of its digits is 1244160, while the sum is 51.
The square root of 68995248 is about 8306.3378212062. The cubic root of 68995248 is about 410.1471769853.
The spelling of 68995248 in words is "sixty-eight million, nine hundred ninety-five thousand, two hundred forty-eight".
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