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216260995 = 5172544247
BaseRepresentation
bin11001110001111…
…10000110000011
3120001221012022111
430320332012003
5420330322440
633243120151
75234121346
oct1470760603
9501835274
10216260995
1110108a0a5
1260513057
1335a5b8b2
1420a1645d
1513ebc4ea
hexce3e183

216260995 has 8 divisors (see below), whose sum is σ = 274778784. Its totient is φ = 162831744.

The previous prime is 216260987. The next prime is 216261037. The reversal of 216260995 is 599062612.

216260995 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 216260995 - 23 = 216260987 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1272039 + ... + 1272208.

It is an arithmetic number, because the mean of its divisors is an integer number (34347348).

Almost surely, 2216260995 is an apocalyptic number.

216260995 is a deficient number, since it is larger than the sum of its proper divisors (58517789).

216260995 is a wasteful number, since it uses less digits than its factorization.

216260995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544269.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 216260995 is about 14705.8150063164. The cubic root of 216260995 is about 600.2415647681.

The spelling of 216260995 in words is "two hundred sixteen million, two hundred sixty thousand, nine hundred ninety-five".

Divisors: 1 5 17 85 2544247 12721235 43252199 216260995