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80928016 = 241321732
BaseRepresentation
bin1001101001011…
…01110100010000
312122021120100221
410310231310100
5131204144031
612010322424
72001606511
oct464556420
9178246327
1080928016
1141755464
1223129414
13139c6900
14aa68a08
157188a11
hex4d2dd10

80928016 has 45 divisors (see below), whose sum is σ = 170774319. Its totient is φ = 37135488.

The previous prime is 80928013. The next prime is 80928017. The reversal of 80928016 is 61082908.

The square root of 80928016 is 8996.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 646416 + 80281600 = 804^2 + 8960^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80928013) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 467706 + ... + 467878.

Almost surely, 280928016 is an apocalyptic number.

80928016 is the 8996-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80928016

80928016 is an abundant number, since it is smaller than the sum of its proper divisors (89846303).

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

80928016 is a wasteful number, since it uses less digits than its factorization.

80928016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The cubic root of 80928016 is about 432.5466616322.

The spelling of 80928016 in words is "eighty million, nine hundred twenty-eight thousand, sixteen".

Divisors: 1 2 4 8 13 16 26 52 104 169 173 208 338 346 676 692 1352 1384 2249 2704 2768 4498 8996 17992 29237 29929 35984 58474 59858 116948 119716 233896 239432 389077 467792 478864 778154 1556308 3112616 5058001 6225232 10116002 20232004 40464008 80928016