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216300885 = 3514420059
BaseRepresentation
bin11001110010001…
…11110101010101
3120002000020000220
430321013311111
5420333112020
633244024553
75234345553
oct1471076525
9502006026
10216300885
11101107069
1260532159
1335a73ab8
1420a26bd3
1513ec9240
hexce47d55

216300885 has 8 divisors (see below), whose sum is σ = 346081440. Its totient is φ = 115360464.

The previous prime is 216300881. The next prime is 216300899. The reversal of 216300885 is 588003612.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 216300885 - 22 = 216300881 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216300881) 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, 7210015 + ... + 7210044.

It is an arithmetic number, because the mean of its divisors is an integer number (43260180).

Almost surely, 2216300885 is an apocalyptic number.

It is an amenable number.

216300885 is a deficient number, since it is larger than the sum of its proper divisors (129780555).

216300885 is a wasteful number, since it uses less digits than its factorization.

216300885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14420067.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 216300885 is about 14707.1712099914. The cubic root of 216300885 is about 600.2784679616.

The spelling of 216300885 in words is "two hundred sixteen million, three hundred thousand, eight hundred eighty-five".

Divisors: 1 3 5 15 14420059 43260177 72100295 216300885