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80826260 = 22510140013
BaseRepresentation
bin1001101000101…
…00111110010100
312122002101210012
410310110332110
5131142420020
612004215352
72001004034
oct464247624
9178071705
1080826260
1141695a69
122309a558
131398c4b8
14aa3d8c4
1571687c5
hex4d14f94

80826260 has 24 divisors (see below), whose sum is σ = 171419976. Its totient is φ = 32009600.

The previous prime is 80826259. The next prime is 80826271. The reversal of 80826260 is 6262808.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 24245776 + 56580484 = 4924^2 + 7522^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17987 + ... + 22026.

It is an arithmetic number, because the mean of its divisors is an integer number (7142499).

Almost surely, 280826260 is an apocalyptic number.

It is an amenable number.

80826260 is an abundant number, since it is smaller than the sum of its proper divisors (90593716).

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

80826260 is a wasteful number, since it uses less digits than its factorization.

80826260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40123 (or 40121 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 80826260 is about 8990.3425963642. The cubic root of 80826260 is about 432.3652960167.

The spelling of 80826260 in words is "eighty million, eight hundred twenty-six thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 101 202 404 505 1010 2020 40013 80026 160052 200065 400130 800260 4041313 8082626 16165252 20206565 40413130 80826260