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683747069 = 3251210319
BaseRepresentation
bin101000110000010…
…010011011111101
31202122120221122112
4220300102123331
52400014401234
6151503023405
722641516455
oct5060223375
91678527575
10683747069
11320a59325
12170b9ab65
13ab86b685
1466b46d65
1540061ace
hex28c126fd

683747069 has 4 divisors (see below), whose sum is σ = 683960640. Its totient is φ = 683533500.

The previous prime is 683747027. The next prime is 683747093. The reversal of 683747069 is 960747386.

683747069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 683747069 - 28 = 683746813 is a prime.

It is a super-2 number, since 2×6837470692 = 935020108732181522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683747369) 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, 101909 + ... + 108410.

It is an arithmetic number, because the mean of its divisors is an integer number (170990160).

Almost surely, 2683747069 is an apocalyptic number.

It is an amenable number.

683747069 is a deficient number, since it is larger than the sum of its proper divisors (213571).

683747069 is a wasteful number, since it uses less digits than its factorization.

683747069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213570.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The square root of 683747069 is about 26148.5576848896. The cubic root of 683747069 is about 880.9781947059.

The spelling of 683747069 in words is "six hundred eighty-three million, seven hundred forty-seven thousand, sixty-nine".

Divisors: 1 3251 210319 683747069