Base | Representation |
---|---|
bin | 1000001010101… |
… | …01001101010010 |
3 | 11202220111011221 |
4 | 10011111031102 |
5 | 120014201300 |
6 | 10444155254 |
7 | 1461203155 |
oct | 405251522 |
9 | 152814157 |
10 | 68506450 |
11 | 35740a01 |
12 | 1ab38b2a |
13 | 11267a7c |
14 | 9153c9c |
15 | 603331a |
hex | 4155352 |
68506450 has 24 divisors (see below), whose sum is σ = 128406960. Its totient is φ = 27190800.
The previous prime is 68506441. The next prime is 68506453. The reversal of 68506450 is 5460586.
It is not an unprimeable number, because it can be changed into a prime (68506453) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1321 + ... + 11779.
It is an arithmetic number, because the mean of its divisors is an integer number (5350290).
Almost surely, 268506450 is an apocalyptic number.
68506450 is a deficient number, since it is larger than the sum of its proper divisors (59900510).
68506450 is a wasteful number, since it uses less digits than its factorization.
68506450 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10602 (or 10597 counting only the distinct ones).
The product of its (nonzero) digits is 28800, while the sum is 34.
The square root of 68506450 is about 8276.8623282014. The cubic root of 68506450 is about 409.1763158009.
The spelling of 68506450 in words is "sixty-eight million, five hundred six thousand, four hundred fifty".
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