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830216 = 23157661
BaseRepresentation
bin11001010101100001000
31120011211202
43022230020
5203031331
625443332
710025312
oct3125410
91504752
10830216
11517832
12340548
13230b6a
141787b2
15115ecb
hexcab08

830216 has 16 divisors (see below), whose sum is σ = 1568940. Its totient is φ = 411840.

The previous prime is 830191. The next prime is 830233. The reversal of 830216 is 612038.

It can be written as a sum of positive squares in 2 ways, for example, as 828100 + 2116 = 910^2 + 46^2 .

It is an unprimeable number.

830216 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 926 + ... + 1586.

2830216 is an apocalyptic number.

It is an amenable number.

830216 is a deficient number, since it is larger than the sum of its proper divisors (738724).

830216 is a wasteful number, since it uses less digits than its factorization.

830216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 830216 is about 911.1618956036. The cubic root of 830216 is about 93.9861153477.

Subtracting from 830216 its product of nonzero digits (288), we obtain a palindrome (829928).

The spelling of 830216 in words is "eight hundred thirty thousand, two hundred sixteen".

Divisors: 1 2 4 8 157 314 628 661 1256 1322 2644 5288 103777 207554 415108 830216