Base | Representation |
---|---|
bin | 1000001100111… |
… | …00101111010101 |
3 | 11210110101002121 |
4 | 10012130233111 |
5 | 120103040240 |
6 | 10454335541 |
7 | 1463533321 |
oct | 406345725 |
9 | 153411077 |
10 | 68799445 |
11 | 35921050 |
12 | 1b05a5b1 |
13 | 1133b240 |
14 | 91cc981 |
15 | 609004a |
hex | 419cbd5 |
68799445 has 16 divisors (see below), whose sum is σ = 96993792. Its totient is φ = 46186560.
The previous prime is 68799433. The next prime is 68799449. The reversal of 68799445 is 54499786.
It is a happy number.
It is not a de Polignac number, because 68799445 - 25 = 68799413 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 68799392 and 68799401.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68799449) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47397 + ... + 48826.
It is an arithmetic number, because the mean of its divisors is an integer number (6062112).
Almost surely, 268799445 is an apocalyptic number.
68799445 is a gapful number since it is divisible by the number (65) formed by its first and last digit.
It is an amenable number.
68799445 is a deficient number, since it is larger than the sum of its proper divisors (28194347).
68799445 is a wasteful number, since it uses less digits than its factorization.
68799445 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 96252.
The product of its digits is 2177280, while the sum is 52.
The square root of 68799445 is about 8294.5430856678. The cubic root of 68799445 is about 409.7588210753.
The spelling of 68799445 in words is "sixty-eight million, seven hundred ninety-nine thousand, four hundred forty-five".
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