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2280440080 = 24528505501
BaseRepresentation
bin1000011111101100…
…1100000100010000
312212221001100200201
42013323030010100
514132243040310
61014141424544
7110340264232
oct20773140420
95787040621
102280440080
11a70281426
1253786b154
132a45b7139
14178c1a252
15d530ae3a
hex87ecc110

2280440080 has 20 divisors (see below), whose sum is σ = 5302023372. Its totient is φ = 912176000.

The previous prime is 2280440069. The next prime is 2280440101. The reversal of 2280440080 is 800440822.

It can be written as a sum of positive squares in 2 ways, for example, as 1121446144 + 1158993936 = 33488^2 + 34044^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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 3 ways as a sum of consecutive naturals, for example, 14252671 + ... + 14252830.

Almost surely, 22280440080 is an apocalyptic number.

2280440080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2280440080 is an abundant number, since it is smaller than the sum of its proper divisors (3021583292).

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

2280440080 is a wasteful number, since it uses less digits than its factorization.

2280440080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28505514 (or 28505508 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 2280440080 is about 47753.9535536064. The cubic root of 2280440080 is about 1316.2535488283.

The spelling of 2280440080 in words is "two billion, two hundred eighty million, four hundred forty thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 28505501 57011002 114022004 142527505 228044008 285055010 456088016 570110020 1140220040 2280440080