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80999332 = 22791371871
BaseRepresentation
bin1001101001111…
…11001110100100
312122102012012021
410310333032210
5131213434312
612012032524
72002324441
oct464771644
9178365167
1080999332
11417a3aa7
1223162744
1313a201cb
14aa869c8
15719ec07
hex4d3f3a4

80999332 has 24 divisors (see below), whose sum is σ = 144668160. Its totient is φ = 39673920.

The previous prime is 80999329. The next prime is 80999333. The reversal of 80999332 is 23399908.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80999333) 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, 42357 + ... + 44227.

It is an arithmetic number, because the mean of its divisors is an integer number (6027840).

Almost surely, 280999332 is an apocalyptic number.

It is an amenable number.

80999332 is a deficient number, since it is larger than the sum of its proper divisors (63668828).

80999332 is a wasteful number, since it uses less digits than its factorization.

80999332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091 (or 2089 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 80999332 is about 8999.9628888124. The cubic root of 80999332 is about 432.6736816782.

The spelling of 80999332 in words is "eighty million, nine hundred ninety-nine thousand, three hundred thirty-two".

Divisors: 1 2 4 79 137 158 274 316 548 1871 3742 7484 10823 21646 43292 147809 256327 295618 512654 591236 1025308 20249833 40499666 80999332