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80884260 = 223251972281
BaseRepresentation
bin1001101001000…
…11001000100100
312122012100100100
410310203020210
5131201244020
612005344100
72001335112
oct464431044
9178170310
1080884260
11417255a6
1223108030
13139aca12
14aa56ab2
15717aa90
hex4d23224

80884260 has 72 divisors (see below), whose sum is σ = 246702456. Its totient is φ = 21450240.

The previous prime is 80884259. The next prime is 80884291. The reversal of 80884260 is 6248808.

It can be written as a sum of positive squares in 4 ways, for example, as 33108516 + 47775744 = 5754^2 + 6912^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34320 + ... + 36600.

It is an arithmetic number, because the mean of its divisors is an integer number (3426423).

Almost surely, 280884260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80884260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123351228).

80884260 is an abundant number, since it is smaller than the sum of its proper divisors (165818196).

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

80884260 is a wasteful number, since it uses less digits than its factorization.

80884260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493 (or 2488 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 80884260 is about 8993.5677014186. The cubic root of 80884260 is about 432.4686914198.

The spelling of 80884260 in words is "eighty million, eight hundred eighty-four thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 197 394 591 788 985 1182 1773 1970 2281 2364 2955 3546 3940 4562 5910 6843 7092 8865 9124 11405 11820 13686 17730 20529 22810 27372 34215 35460 41058 45620 68430 82116 102645 136860 205290 410580 449357 898714 1348071 1797428 2246785 2696142 4044213 4493570 5392284 6740355 8088426 8987140 13480710 16176852 20221065 26961420 40442130 80884260