Base | Representation |
---|---|
bin | 11101011011111… |
… | …111111001111011 |
3 | 1021102022122111101 |
4 | 131123333321323 |
5 | 2002413111112 |
6 | 121001312231 |
7 | 15144621124 |
oct | 3533777173 |
9 | 1242278441 |
10 | 493878907 |
11 | 233866595 |
12 | 119495677 |
13 | 7b420c52 |
14 | 4984104b |
15 | 2d559757 |
hex | 1d6ffe7b |
493878907 has 8 divisors (see below), whose sum is σ = 506811312. Its totient is φ = 480988800.
The previous prime is 493878901. The next prime is 493878929. The reversal of 493878907 is 709878394.
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 493878907 - 215 = 493846139 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (493878901) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13807 + ... + 34327.
It is an arithmetic number, because the mean of its divisors is an integer number (63351414).
Almost surely, 2493878907 is an apocalyptic number.
493878907 is a deficient number, since it is larger than the sum of its proper divisors (12932405).
493878907 is a wasteful number, since it uses less digits than its factorization.
493878907 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21149.
The product of its (nonzero) digits is 3048192, while the sum is 55.
The square root of 493878907 is about 22223.3864881120. The cubic root of 493878907 is about 790.4483418870.
It can be divided in two parts, 493878 and 907, that multiplied together give a triangular number (447947346 = T29931).
The spelling of 493878907 in words is "four hundred ninety-three million, eight hundred seventy-eight thousand, nine hundred seven".
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