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216000533 = 7257120067
BaseRepresentation
bin11001101111111…
…10100000010101
3120001102222000202
430313332200111
5420244004113
633233350245
75231655110
oct1467764025
9501388022
10216000533
11100a21441
1260408385
133599a188
1420989577
1513e6a258
hexcdfe815

216000533 has 8 divisors (see below), whose sum is σ = 247820352. Its totient is φ = 184421376.

The previous prime is 216000509. The next prime is 216000539. The reversal of 216000533 is 335000612.

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 216000533 - 28 = 216000277 is a prime.

It is a super-3 number, since 3×2160005333 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216000539) 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, 58235 + ... + 61832.

It is an arithmetic number, because the mean of its divisors is an integer number (30977544).

Almost surely, 2216000533 is an apocalyptic number.

It is an amenable number.

216000533 is a deficient number, since it is larger than the sum of its proper divisors (31819819).

216000533 is a wasteful number, since it uses less digits than its factorization.

216000533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120331.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 216000533 is about 14696.9565897161. The cubic root of 216000533 is about 600.0004935181. Note that the first 3 decimals are identical.

The spelling of 216000533 in words is "two hundred sixteen million, five hundred thirty-three", and thus it is an aban number.

Divisors: 1 7 257 1799 120067 840469 30857219 216000533