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1304069 = 13100313
BaseRepresentation
bin100111110011000000101
32110020211212
410332120011
5313212234
643541205
714040644
oct4763005
92406755
101304069
11810848
1252a805
13368750
1425d35b
151ab5ce
hex13e605

1304069 has 4 divisors (see below), whose sum is σ = 1404396. Its totient is φ = 1203744.

The previous prime is 1304033. The next prime is 1304071. The reversal of 1304069 is 9604031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 122500 + 1181569 = 350^2 + 1087^2 .

It is a cyclic number.

It is not a de Polignac number, because 1304069 - 216 = 1238533 is a prime.

It is a super-4 number, since 4×13040694 (a number of 26 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50144 + ... + 50169.

It is an arithmetic number, because the mean of its divisors is an integer number (351099).

21304069 is an apocalyptic number.

It is an amenable number.

1304069 is a deficient number, since it is larger than the sum of its proper divisors (100327).

1304069 is a wasteful number, since it uses less digits than its factorization.

1304069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100326.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1304069 is about 1141.9584055472. The cubic root of 1304069 is about 109.2530383668.

The spelling of 1304069 in words is "one million, three hundred four thousand, sixty-nine".

Divisors: 1 13 100313 1304069