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80892532 = 2272412717
BaseRepresentation
bin1001101001001…
…01001001110100
312122012202200201
410310211021310
5131202030112
612005450244
72001401200
oct464451164
9178182621
1080892532
1141730836
1223110984
13139b3706
14aa59b00
15717d257
hex4d25274

80892532 has 18 divisors (see below), whose sum is σ = 164674482. Its totient is φ = 34668144.

The previous prime is 80892529. The next prime is 80892569. The reversal of 80892532 is 23529808.

It can be written as a sum of positive squares in only one way, i.e., 73891216 + 7001316 = 8596^2 + 2646^2 .

It is a junction number, because it is equal to n+sod(n) for n = 80892491 and 80892500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 206163 + ... + 206554.

Almost surely, 280892532 is an apocalyptic number.

It is an amenable number.

80892532 is an abundant number, since it is smaller than the sum of its proper divisors (83781950).

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

80892532 is a wasteful number, since it uses less digits than its factorization.

80892532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412735 (or 412726 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 80892532 is about 8994.0275738959. The cubic root of 80892532 is about 432.4834337156.

The spelling of 80892532 in words is "eighty million, eight hundred ninety-two thousand, five hundred thirty-two".

Divisors: 1 2 4 7 14 28 49 98 196 412717 825434 1650868 2889019 5778038 11556076 20223133 40446266 80892532