Base | Representation |
---|---|
bin | 1000000111011… |
… | …10111010111100 |
3 | 11202010012110200 |
4 | 10003232322330 |
5 | 114412244414 |
6 | 10431203500 |
7 | 1454506533 |
oct | 403567274 |
9 | 152105420 |
10 | 68087484 |
11 | 35485153 |
12 | 1a976590 |
13 | 1114c16a |
14 | 908531a |
15 | 5e9e109 |
hex | 40eeebc |
68087484 has 18 divisors (see below), whose sum is σ = 172110120. Its totient is φ = 22695816.
The previous prime is 68087471. The next prime is 68087497. The reversal of 68087484 is 48478086.
It is an interprime number because it is at equal distance from previous prime (68087471) and next prime (68087497).
It is a tau number, because it is divible by the number of its divisors (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 945624 + ... + 945695.
Almost surely, 268087484 is an apocalyptic number.
It is an amenable number.
68087484 is an abundant number, since it is smaller than the sum of its proper divisors (104022636).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68087484 is a wasteful number, since it uses less digits than its factorization.
68087484 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1891329 (or 1891324 counting only the distinct ones).
The product of its (nonzero) digits is 344064, while the sum is 45.
The square root of 68087484 is about 8251.5140428893. The cubic root of 68087484 is about 408.3404741590.
The spelling of 68087484 in words is "sixty-eight million, eighty-seven thousand, four hundred eighty-four".
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