Base | Representation |
---|---|
bin | 1000001010111… |
… | …10100110000101 |
3 | 11202222102221001 |
4 | 10011132212011 |
5 | 120021414101 |
6 | 10445053301 |
7 | 1461423235 |
oct | 405364605 |
9 | 152872831 |
10 | 68544901 |
11 | 35767887 |
12 | 1ab57231 |
13 | 1127c419 |
14 | 9163cc5 |
15 | 603e901 |
hex | 415e985 |
68544901 has 8 divisors (see below), whose sum is σ = 72857664. Its totient is φ = 64263360.
The previous prime is 68544887. The next prime is 68544943. The reversal of 68544901 is 10944586.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 68544901 - 25 = 68544869 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68544101) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3195 + ... + 12136.
It is an arithmetic number, because the mean of its divisors is an integer number (9107208).
Almost surely, 268544901 is an apocalyptic number.
It is an amenable number.
68544901 is a deficient number, since it is larger than the sum of its proper divisors (4312763).
68544901 is a wasteful number, since it uses less digits than its factorization.
68544901 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15611.
The product of its (nonzero) digits is 34560, while the sum is 37.
The square root of 68544901 is about 8279.1848028656. The cubic root of 68544901 is about 409.2528550458.
The spelling of 68544901 in words is "sixty-eight million, five hundred forty-four thousand, nine hundred one".
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