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1284483072 = 2113209063
BaseRepresentation
bin100110010001111…
…1010100000000000
310022111222111112010
41030203322200000
510112311424242
6331242532520
743554632415
oct11443724000
93274874463
101284483072
115aa06a164
122ba207140
13176164272
14c284210c
1577b7789c
hex4c8fa800

1284483072 has 48 divisors (see below), whose sum is σ = 3424468320. Its totient is φ = 428158976.

The previous prime is 1284483061. The next prime is 1284483103. The reversal of 1284483072 is 2703844821.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 1284483072.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98388 + ... + 110675.

It is an arithmetic number, because the mean of its divisors is an integer number (71343090).

Almost surely, 21284483072 is an apocalyptic number.

1284483072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1284483072 is an abundant number, since it is smaller than the sum of its proper divisors (2139985248).

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

1284483072 is an equidigital number, since it uses as much as digits as its factorization.

1284483072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209088 (or 209068 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 1284483072 is about 35839.6857129077. The cubic root of 1284483072 is about 1087.0331664684.

The spelling of 1284483072 in words is "one billion, two hundred eighty-four million, four hundred eighty-three thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 512 768 1024 1536 2048 3072 6144 209063 418126 627189 836252 1254378 1672504 2508756 3345008 5017512 6690016 10035024 13380032 20070048 26760064 40140096 53520128 80280192 107040256 160560384 214080512 321120768 428161024 642241536 1284483072