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80820248 = 2310102531
BaseRepresentation
bin1001101000100…
…11100000011000
312122002002112112
410310103200120
5131142221443
612004131452
72000650355
oct464234030
9178062475
1080820248
11416914a3
1223096b88
1313989842
14aa3b62c
157166b18
hex4d13818

80820248 has 8 divisors (see below), whose sum is σ = 151537980. Its totient is φ = 40410120.

The previous prime is 80820221. The next prime is 80820251. The reversal of 80820248 is 84202808.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5051258 + ... + 5051273.

Almost surely, 280820248 is an apocalyptic number.

It is an amenable number.

80820248 is a deficient number, since it is larger than the sum of its proper divisors (70717732).

80820248 is a wasteful number, since it uses less digits than its factorization.

80820248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10102537 (or 10102533 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 80820248 is about 8990.0082313644. The cubic root of 80820248 is about 432.3545757194.

The spelling of 80820248 in words is "eighty million, eight hundred twenty thousand, two hundred forty-eight".

Divisors: 1 2 4 8 10102531 20205062 40410124 80820248