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216082633 = 1316621741
BaseRepresentation
bin11001110000100…
…10100011001001
3120001121010122111
430320102203021
5420304121013
633235222321
75232446344
oct1470224311
9501533574
10216082633
11100a78098
12604479a1
13359c8660
14209ab45b
1513e8473d
hexce128c9

216082633 has 4 divisors (see below), whose sum is σ = 232704388. Its totient is φ = 199460880.

The previous prime is 216082619. The next prime is 216082651. The reversal of 216082633 is 336280612.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68508729 + 147573904 = 8277^2 + 12148^2 .

It is a cyclic number.

It is not a de Polignac number, because 216082633 - 221 = 213985481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216082595 and 216082604.

It is not an unprimeable number, because it can be changed into a prime (216082133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8310858 + ... + 8310883.

It is an arithmetic number, because the mean of its divisors is an integer number (58176097).

Almost surely, 2216082633 is an apocalyptic number.

It is an amenable number.

216082633 is a deficient number, since it is larger than the sum of its proper divisors (16621755).

216082633 is a wasteful number, since it uses less digits than its factorization.

216082633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16621754.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 216082633 is about 14699.7494196330. The cubic root of 216082633 is about 600.0765022823.

The spelling of 216082633 in words is "two hundred sixteen million, eighty-two thousand, six hundred thirty-three".

Divisors: 1 13 16621741 216082633