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440480080 = 2455506001
BaseRepresentation
bin11010010000010…
…011000101010000
31010200211201002001
4122100103011100
51400230330310
6111413003344
713626006325
oct3220230520
91120751061
10440480080
11206704227
12103623554
1370345801
1442700b4c
1528a0c93a
hex1a413150

440480080 has 20 divisors (see below), whose sum is σ = 1024116372. Its totient is φ = 176192000.

The previous prime is 440480057. The next prime is 440480083. The reversal of 440480080 is 80084044.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 85082176 + 355397904 = 9224^2 + 18852^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440480083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2752921 + ... + 2753080.

Almost surely, 2440480080 is an apocalyptic number.

440480080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440480080 is an abundant number, since it is smaller than the sum of its proper divisors (583636292).

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

440480080 is a wasteful number, since it uses less digits than its factorization.

440480080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5506014 (or 5506008 counting only the distinct ones).

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

The square root of 440480080 is about 20987.6173016376. The cubic root of 440480080 is about 760.8670160629.

The spelling of 440480080 in words is "four hundred forty million, four hundred eighty thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 5506001 11012002 22024004 27530005 44048008 55060010 88096016 110120020 220240040 440480080