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2909374169 = 131713164589
BaseRepresentation
bin1010110101101001…
…1000011011011001
321111202111112001212
42231122120123121
521424244433134
61200405552505
7132045162302
oct25532303331
97452445055
102909374169
1112632a1969
12692415735
133749a37a0
141d85757a9
15120641bce
hexad6986d9

2909374169 has 8 divisors (see below), whose sum is σ = 3317476680. Its totient is φ = 2527600896.

The previous prime is 2909374157. The next prime is 2909374187. The reversal of 2909374169 is 9614739092.

It can be written as a sum of positive squares in 4 ways, for example, as 125440000 + 2783934169 = 11200^2 + 52763^2 .

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 2909374169 - 28 = 2909373913 is a prime.

It is a super-2 number, since 2×29093741692 = 16928916110488881122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2909374189) 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 7 ways as a sum of consecutive naturals, for example, 6582074 + ... + 6582515.

It is an arithmetic number, because the mean of its divisors is an integer number (414684585).

Almost surely, 22909374169 is an apocalyptic number.

It is an amenable number.

2909374169 is a deficient number, since it is larger than the sum of its proper divisors (408102511).

2909374169 is a wasteful number, since it uses less digits than its factorization.

2909374169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13164619.

The product of its (nonzero) digits is 734832, while the sum is 50.

The square root of 2909374169 is about 53938.6148227779. The cubic root of 2909374169 is about 1427.5780427069.

The spelling of 2909374169 in words is "two billion, nine hundred nine million, three hundred seventy-four thousand, one hundred sixty-nine".

Divisors: 1 13 17 221 13164589 171139657 223798013 2909374169