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814216 = 23137829
BaseRepresentation
bin11000110110010001000
31112100220011
43012302020
5202023331
625241304
76630544
oct3066210
91470804
10814216
11506807
12333234
132267b0
14172a24
151113b1
hexc6c88

814216 has 16 divisors (see below), whose sum is σ = 1644300. Its totient is φ = 375744.

The previous prime is 814213. The next prime is 814237. The reversal of 814216 is 612418.

It can be written as a sum of positive squares in 2 ways, for example, as 688900 + 125316 = 830^2 + 354^2 .

It is not an unprimeable number, because it can be changed into a prime (814211) 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, 3811 + ... + 4018.

2814216 is an apocalyptic number.

It is an amenable number.

814216 is an abundant number, since it is smaller than the sum of its proper divisors (830084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

814216 is a wasteful number, since it uses less digits than its factorization.

814216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7848 (or 7844 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

The square root of 814216 is about 902.3391823477. The cubic root of 814216 is about 93.3784249237.

The spelling of 814216 in words is "eight hundred fourteen thousand, two hundred sixteen".

Divisors: 1 2 4 8 13 26 52 104 7829 15658 31316 62632 101777 203554 407108 814216