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470284240 = 2455878553
BaseRepresentation
bin11100000001111…
…111011111010000
31012202220220200211
4130001333133100
51430343043430
6114355453504
714440231036
oct3401773720
91182826624
10470284240
11221510568
121115b7294
137657c5ca
144665c556
152b44872a
hex1c07f7d0

470284240 has 20 divisors (see below), whose sum is σ = 1093411044. Its totient is φ = 188113664.

The previous prime is 470284207. The next prime is 470284261. The reversal of 470284240 is 42482074.

It can be written as a sum of positive squares in 2 ways, for example, as 328769424 + 141514816 = 18132^2 + 11896^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2939197 + ... + 2939356.

Almost surely, 2470284240 is an apocalyptic number.

470284240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

470284240 is an abundant number, since it is smaller than the sum of its proper divisors (623126804).

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

470284240 is a wasteful number, since it uses less digits than its factorization.

470284240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5878566 (or 5878560 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 31.

The square root of 470284240 is about 21686.0379046058. The cubic root of 470284240 is about 777.6547129250.

The spelling of 470284240 in words is "four hundred seventy million, two hundred eighty-four thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 5878553 11757106 23514212 29392765 47028424 58785530 94056848 117571060 235142120 470284240