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1306893 = 3762233
BaseRepresentation
bin100111111000100001101
32110101201110
410333010031
5313310033
644002233
714052120
oct4770415
92411643
101306893
11812985
12530379
13369b13
142603b7
151ac363
hex13f10d

1306893 has 8 divisors (see below), whose sum is σ = 1991488. Its totient is φ = 746784.

The previous prime is 1306891. The next prime is 1306901. The reversal of 1306893 is 3986031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1306893 - 21 = 1306891 is a prime.

It is a Duffinian number.

1306893 is a lucky number.

It is a zygodrome in base 6.

It is a self number, because there is not a number n which added to its sum of digits gives 1306893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306891) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 31096 + ... + 31137.

It is an arithmetic number, because the mean of its divisors is an integer number (248936).

21306893 is an apocalyptic number.

It is an amenable number.

1306893 is a deficient number, since it is larger than the sum of its proper divisors (684595).

1306893 is an equidigital number, since it uses as much as digits as its factorization.

1306893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62243.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 1306893 is about 1143.1942092226. The cubic root of 1306893 is about 109.3318450703.

The spelling of 1306893 in words is "one million, three hundred six thousand, eight hundred ninety-three".

Divisors: 1 3 7 21 62233 186699 435631 1306893