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80843212 = 2220210803
BaseRepresentation
bin1001101000110…
…01000111001100
312122010021001001
410310121013030
5131143440322
612004430044
72001104332
oct464310714
9178107031
1080843212
11416a777a
12230a8324
1313997128
14aa45b52
15716d827
hex4d191cc

80843212 has 6 divisors (see below), whose sum is σ = 141475628. Its totient is φ = 40421604.

The previous prime is 80843207. The next prime is 80843219. The reversal of 80843212 is 21234808.

It is not an unprimeable number, because it can be changed into a prime (80843219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105398 + ... + 10105405.

Almost surely, 280843212 is an apocalyptic number.

It is an amenable number.

80843212 is a deficient number, since it is larger than the sum of its proper divisors (60632416).

80843212 is a wasteful number, since it uses less digits than its factorization.

80843212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20210807 (or 20210805 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 80843212 is about 8991.2853363688. The cubic root of 80843212 is about 432.3955211117.

The spelling of 80843212 in words is "eighty million, eight hundred forty-three thousand, two hundred twelve".

Divisors: 1 2 4 20210803 40421606 80843212