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174020013 = 3219335557
BaseRepresentation
bin10100101111101…
…01010110101101
3110010110010120200
422113311112231
5324022120023
625133504113
74212100656
oct1227652655
9403403520
10174020013
118a2588a2
124a342039
132a08c02b
141917c52d
1510426743
hexa5f55ad

174020013 has 6 divisors (see below), whose sum is σ = 251362254. Its totient is φ = 116013336.

The previous prime is 174019997. The next prime is 174020017. The reversal of 174020013 is 310020471.

It can be written as a sum of positive squares in only one way, i.e., 164172969 + 9847044 = 12813^2 + 3138^2 .

It is not a de Polignac number, because 174020013 - 24 = 174019997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (174020017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9667770 + ... + 9667787.

It is an arithmetic number, because the mean of its divisors is an integer number (41893709).

Almost surely, 2174020013 is an apocalyptic number.

It is an amenable number.

174020013 is a deficient number, since it is larger than the sum of its proper divisors (77342241).

174020013 is a wasteful number, since it uses less digits than its factorization.

174020013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19335563 (or 19335560 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 174020013 is about 13191.6645272687. The cubic root of 174020013 is about 558.2984201728.

Adding to 174020013 its reverse (310020471), we get a palindrome (484040484).

It can be divided in two parts, 17 and 4020013, that added together give a triangular number (4020030 = T2835).

The spelling of 174020013 in words is "one hundred seventy-four million, twenty thousand, thirteen".

Divisors: 1 3 9 19335557 58006671 174020013