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675012221 = 13192732843
BaseRepresentation
bin101000001110111…
…101111001111101
31202001011011200122
4220032331321331
52340300342341
6150551504325
722504336442
oct5016757175
91661134618
10675012221
11317032744
1216a0880a5
13a9b00920
14659119c9
153e3d894b
hex283bde7d

675012221 has 8 divisors (see below), whose sum is σ = 765196320. Its totient is φ = 590293872.

The previous prime is 675012193. The next prime is 675012227. The reversal of 675012221 is 122210576.

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

It is a cyclic number.

It is not a de Polignac number, because 675012221 - 26 = 675012157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675012227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1366175 + ... + 1366668.

It is an arithmetic number, because the mean of its divisors is an integer number (95649540).

Almost surely, 2675012221 is an apocalyptic number.

It is an amenable number.

675012221 is a deficient number, since it is larger than the sum of its proper divisors (90184099).

675012221 is a wasteful number, since it uses less digits than its factorization.

675012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732875.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 675012221 is about 25980.9973057233. The cubic root of 675012221 is about 877.2106154202.

Adding to 675012221 its reverse (122210576), we get a palindrome (797222797).

The spelling of 675012221 in words is "six hundred seventy-five million, twelve thousand, two hundred twenty-one".

Divisors: 1 13 19 247 2732843 35526959 51924017 675012221