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1081344 = 215311
BaseRepresentation
bin100001000000000000000
32000221022210
410020000000
5234100334
635102120
712122415
oct4100000
92027283
101081344
11679480
12441940
132bb264
1420210c
151655e9
hex108000

1081344 has 64 divisors (see below), whose sum is σ = 3145680. Its totient is φ = 327680.

The previous prime is 1081337. The next prime is 1081351. The reversal of 1081344 is 4431801.

It is an interprime number because it is at equal distance from previous prime (1081337) and next prime (1081351).

It is a tau number, because it is divible by the number of its divisors (64).

It is a nialpdrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 1081344.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (2) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98299 + ... + 98309.

21081344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1081344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1572840).

1081344 is an abundant number, since it is smaller than the sum of its proper divisors (2064336).

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

1081344 is an frugal number, since it uses more digits than its factorization.

1081344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44 (or 16 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1081344 is about 1039.8769157934. The cubic root of 1081344 is about 102.6410985599.

The spelling of 1081344 in words is "one million, eighty-one thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 128 132 176 192 256 264 352 384 512 528 704 768 1024 1056 1408 1536 2048 2112 2816 3072 4096 4224 5632 6144 8192 8448 11264 12288 16384 16896 22528 24576 32768 33792 45056 49152 67584 90112 98304 135168 180224 270336 360448 540672 1081344