Base | Representation |
---|---|
bin | 1000000111000… |
… | …00000010111010 |
3 | 11202000002220000 |
4 | 10003200002322 |
5 | 114403322204 |
6 | 10430013430 |
7 | 1454134101 |
oct | 403400272 |
9 | 152002800 |
10 | 68026554 |
11 | 354433a2 |
12 | 1a947276 |
13 | 1112a4cb |
14 | 906b038 |
15 | 5e8b039 |
hex | 40e00ba |
68026554 has 60 divisors (see below), whose sum is σ = 162035214. Its totient is φ = 21326976.
The previous prime is 68026523. The next prime is 68026579. The reversal of 68026554 is 45562086.
68026554 is a `hidden beast` number, since 6 + 80 + 26 + 554 = 666.
It can be written as a sum of positive squares in 3 ways, for example, as 64883025 + 3143529 = 8055^2 + 1773^2 .
It is a super-2 number, since 2×680265542 = 9255224098229832, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 46092 + ... + 47544.
Almost surely, 268026554 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68026554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81017607).
68026554 is an abundant number, since it is smaller than the sum of its proper divisors (94008660).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68026554 is a wasteful number, since it uses less digits than its factorization.
68026554 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1501 (or 1475 counting only the distinct ones).
The product of its (nonzero) digits is 57600, while the sum is 36.
The square root of 68026554 is about 8247.8211668295. The cubic root of 68026554 is about 408.2186328214.
The spelling of 68026554 in words is "sixty-eight million, twenty-six thousand, five hundred fifty-four".
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