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1282884144 = 243227281419
BaseRepresentation
bin100110001110111…
…0100001000110000
310022101222021012120
41030131310020300
510111404243034
6331144354240
743535223003
oct11435641060
93271867176
101282884144
115a9177933
122b9775980
13175a24559
14c254753a
157795dc49
hex4c774230

1282884144 has 80 divisors (see below), whose sum is σ = 3348535680. Its totient is φ = 423216640.

The previous prime is 1282884131. The next prime is 1282884149. The reversal of 1282884144 is 4414882821.

It is a super-2 number, since 2×12828841442 = 3291583453853225472, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1282884096 and 1282884105.

It is not an unprimeable number, because it can be changed into a prime (1282884149) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3061567 + ... + 3061985.

It is an arithmetic number, because the mean of its divisors is an integer number (41856696).

Almost surely, 21282884144 is an apocalyptic number.

It is an amenable number.

1282884144 is an abundant number, since it is smaller than the sum of its proper divisors (2065651536).

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

1282884144 is a wasteful number, since it uses less digits than its factorization.

1282884144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938 (or 932 counting only the distinct ones).

The product of its digits is 131072, while the sum is 42.

The square root of 1282884144 is about 35817.3720979080. The cubic root of 1282884144 is about 1086.5819319093.

The spelling of 1282884144 in words is "one billion, two hundred eighty-two million, eight hundred eighty-four thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 227 281 419 454 562 681 838 843 908 1124 1257 1362 1676 1686 1816 2248 2514 2724 3352 3372 3632 4496 5028 5448 6704 6744 10056 10896 13488 20112 63787 95113 117739 127574 190226 191361 235478 255148 285339 353217 380452 382722 470956 510296 570678 706434 760904 765444 941912 1020592 1141356 1412868 1521808 1530888 1883824 2282712 2825736 3061776 4565424 5651472 26726753 53453506 80180259 106907012 160360518 213814024 320721036 427628048 641442072 1282884144