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1313088 = 2637977
BaseRepresentation
bin101000000100101000000
32110201012220
411000211000
5314004323
644051040
714106150
oct5004500
92421186
101313088
118175a7
12533a80
1336c89a
14262760
151ae0e3
hex140940

1313088 has 56 divisors (see below), whose sum is σ = 3974592. Its totient is φ = 374784.

The previous prime is 1313087. The next prime is 1313141. The reversal of 1313088 is 8803131.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 856 + ... + 1832.

21313088 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 1313088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1987296).

1313088 is an abundant number, since it is smaller than the sum of its proper divisors (2661504).

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

1313088 is an equidigital number, since it uses as much as digits as its factorization.

1313088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999 (or 989 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1313088 is about 1145.9005192424. The cubic root of 1313088 is about 109.5043262610.

The spelling of 1313088 in words is "one million, three hundred thirteen thousand, eighty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 168 192 224 336 448 672 977 1344 1954 2931 3908 5862 6839 7816 11724 13678 15632 20517 23448 27356 31264 41034 46896 54712 62528 82068 93792 109424 164136 187584 218848 328272 437696 656544 1313088