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675031717 = 1813729457
BaseRepresentation
bin101000001111000…
…010101010100101
31202001012011102201
4220033002222211
52340302003332
6150552134501
722504450333
oct5017025245
91661164381
10675031717
11317046358
1216a097431
13a9b09769
1465918b53
153e3de5e7
hex283c2aa5

675031717 has 4 divisors (see below), whose sum is σ = 678761356. Its totient is φ = 671302080.

The previous prime is 675031711. The next prime is 675031739. The reversal of 675031717 is 717130576.

It is a happy number.

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 144144036 + 530887681 = 12006^2 + 23041^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-675031717 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675031711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1864548 + ... + 1864909.

It is an arithmetic number, because the mean of its divisors is an integer number (169690339).

Almost surely, 2675031717 is an apocalyptic number.

It is an amenable number.

675031717 is a deficient number, since it is larger than the sum of its proper divisors (3729639).

675031717 is a wasteful number, since it uses less digits than its factorization.

675031717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3729638.

The product of its (nonzero) digits is 30870, while the sum is 37.

The square root of 675031717 is about 25981.3725003126. The cubic root of 675031717 is about 877.2190606665.

The spelling of 675031717 in words is "six hundred seventy-five million, thirty-one thousand, seven hundred seventeen".

Divisors: 1 181 3729457 675031717