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1280484484 = 22586754563
BaseRepresentation
bin100110001010010…
…1010010010000100
310022020110100111021
41030110222102010
510110301000414
6331021120524
743505636626
oct11424522204
93266410437
101280484484
115a7888a44
122b89b9144
13175394236
14c20c0c16
1577637c24
hex4c52a484

1280484484 has 12 divisors (see below), whose sum is σ = 2241270864. Its totient is φ = 640121384.

The previous prime is 1280484467. The next prime is 1280484539. The reversal of 1280484484 is 4844840821.

It is a self number, because there is not a number n which added to its sum of digits gives 1280484484.

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, 3814 + ... + 50749.

It is an arithmetic number, because the mean of its divisors is an integer number (186772572).

Almost surely, 21280484484 is an apocalyptic number.

It is an amenable number.

1280484484 is a deficient number, since it is larger than the sum of its proper divisors (960786380).

1280484484 is a wasteful number, since it uses less digits than its factorization.

1280484484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60434 (or 60432 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 43.

The square root of 1280484484 is about 35783.8578691566. The cubic root of 1280484484 is about 1085.9040180981.

The spelling of 1280484484 in words is "one billion, two hundred eighty million, four hundred eighty-four thousand, four hundred eighty-four".

Divisors: 1 2 4 5867 11734 23468 54563 109126 218252 320121121 640242242 1280484484