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168795869 = 1115345079
BaseRepresentation
bin10100000111110…
…01111011011101
3102202121201101212
422003321323131
5321202431434
624425514205
74116512144
oct1203717335
9382551355
10168795869
118730a920
1248642965
1328c80218
14185bc75b
15ec438ce
hexa0f9edd

168795869 has 4 divisors (see below), whose sum is σ = 184140960. Its totient is φ = 153450780.

The previous prime is 168795841. The next prime is 168795871. The reversal of 168795869 is 968597861.

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 168795869 - 212 = 168791773 is a prime.

It is a super-2 number, since 2×1687958692 = 56984090782930322, which contains 22 as substring.

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 (168795889) 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 3 ways as a sum of consecutive naturals, for example, 7672529 + ... + 7672550.

It is an arithmetic number, because the mean of its divisors is an integer number (46035240).

Almost surely, 2168795869 is an apocalyptic number.

It is an amenable number.

168795869 is a deficient number, since it is larger than the sum of its proper divisors (15345091).

168795869 is a wasteful number, since it uses less digits than its factorization.

168795869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15345090.

The product of its digits is 6531840, while the sum is 59.

The square root of 168795869 is about 12992.1464354432. The cubic root of 168795869 is about 552.6547892501.

The spelling of 168795869 in words is "one hundred sixty-eight million, seven hundred ninety-five thousand, eight hundred sixty-nine".

Divisors: 1 11 15345079 168795869