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195045165 = 3557171971
BaseRepresentation
bin10111010000000…
…10011100101101
3111121000022200000
423220002130231
5344412421130
631204254513
74555566540
oct1350023455
9447008600
10195045165
11a0109357
12553a1439
1331540c53
141bc92857
15121cb260
hexba0272d

195045165 has 192 divisors, whose sum is σ = 452874240. Its totient is φ = 78382080.

The previous prime is 195045163. The next prime is 195045173. The reversal of 195045165 is 561540591.

It is not a de Polignac number, because 195045165 - 21 = 195045163 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 (195045163) 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 191 ways as a sum of consecutive naturals, for example, 2747080 + ... + 2747150.

It is an arithmetic number, because the mean of its divisors is an integer number (2358720).

Almost surely, 2195045165 is an apocalyptic number.

195045165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

195045165 is an abundant number, since it is smaller than the sum of its proper divisors (257829075).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

195045165 is a wasteful number, since it uses less digits than its factorization.

195045165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 195045165 is about 13965.8571165539. The cubic root of 195045165 is about 579.9337667134.

The spelling of 195045165 in words is "one hundred ninety-five million, forty-five thousand, one hundred sixty-five".