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492079169 = 3719368909
BaseRepresentation
bin11101010101001…
…000100001000001
31021021221012201102
4131111020201001
52001433013134
6120454544145
715123414101
oct3525104101
91237835642
10492079169
112328473aa
12118968055
137ac40a0a
14494d3201
152d30137e
hex1d548841

492079169 has 8 divisors (see below), whose sum is σ = 508004520. Its totient is φ = 476292096.

The previous prime is 492079139. The next prime is 492079187. The reversal of 492079169 is 961970294.

It can be written as a sum of positive squares in 4 ways, for example, as 160402225 + 331676944 = 12665^2 + 18212^2 .

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 492079169 - 216 = 492013633 is a prime.

It is a super-2 number, since 2×4920791692 = 484283817127461122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (492079129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27314 + ... + 41595.

It is an arithmetic number, because the mean of its divisors is an integer number (63500565).

Almost surely, 2492079169 is an apocalyptic number.

It is an amenable number.

492079169 is a deficient number, since it is larger than the sum of its proper divisors (15925351).

492079169 is a wasteful number, since it uses less digits than its factorization.

492079169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69139.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 492079169 is about 22182.8575481158. The cubic root of 492079169 is about 789.4870188914.

The spelling of 492079169 in words is "four hundred ninety-two million, seventy-nine thousand, one hundred sixty-nine".

Divisors: 1 37 193 7141 68909 2549633 13299437 492079169