Base | Representation |
---|---|
bin | 1000001010111… |
… | …10000001010100 |
3 | 11202222022200220 |
4 | 10011132001110 |
5 | 120021330143 |
6 | 10445034340 |
7 | 1461413334 |
oct | 405360124 |
9 | 152868626 |
10 | 68542548 |
11 | 35766038 |
12 | 1ab559b0 |
13 | 1127b329 |
14 | 91630c4 |
15 | 603dd83 |
hex | 415e054 |
68542548 has 24 divisors (see below), whose sum is σ = 162187200. Its totient is φ = 22525440.
The previous prime is 68542531. The next prime is 68542577. The reversal of 68542548 is 84524586.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39373 + ... + 41076.
It is an arithmetic number, because the mean of its divisors is an integer number (6757800).
Almost surely, 268542548 is an apocalyptic number.
It is an amenable number.
68542548 is an abundant number, since it is smaller than the sum of its proper divisors (93644652).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68542548 is a wasteful number, since it uses less digits than its factorization.
68542548 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 80527 (or 80525 counting only the distinct ones).
The product of its digits is 307200, while the sum is 42.
The square root of 68542548 is about 8279.0426982834. The cubic root of 68542548 is about 409.2481720669.
The spelling of 68542548 in words is "sixty-eight million, five hundred forty-two thousand, five hundred forty-eight".
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