Base | Representation |
---|---|
bin | 1000000110111… |
… | …11100010000000 |
3 | 11202000000000000 |
4 | 10003133202000 |
5 | 114403240243 |
6 | 10430000000 |
7 | 1454125002 |
oct | 403374200 |
9 | 152000000 |
10 | 68024448 |
11 | 35441858 |
12 | 1a946000 |
13 | 1112956b |
14 | 906a372 |
15 | 5e8a5d3 |
hex | 40df880 |
68024448 has 104 divisors (see below), whose sum is σ = 203276055. Its totient is φ = 22674816.
The previous prime is 68024441. The next prime is 68024477. The reversal of 68024448 is 84442086.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in only one way, i.e., 34012224 + 34012224 = 5832^2 + 5832^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=5832.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (68024441) by changing a digit.
It is a polite number, since it can be written in 12 ways as a sum of consecutive naturals, for example, 22674815 + 22674816 + 22674817.
Almost surely, 268024448 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68024448
68024448 is an abundant number, since it is smaller than the sum of its proper divisors (135251607).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68024448 is an frugal number, since it uses more digits than its factorization.
68024448 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 50 (or 5 counting only the distinct ones).
The product of its (nonzero) digits is 49152, while the sum is 36.
The square root of 68024448 is about 8247.6934957599. The cubic root of 68024448 is about 408.2144201659.
68024448 divided by its sum of digits (36) gives a 5-th power (1889568 = 185).
The spelling of 68024448 in words is "sixty-eight million, twenty-four thousand, four hundred forty-eight".
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