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165108441 = 371775157
BaseRepresentation
bin10011101011101…
…01101011011001
3102111200101012110
421311311223121
5314231432231
624214502533
74043253501
oct1165655331
9374611173
10165108441
1185221463
1247364a49
132828ba04
1417cdca01
15e766046
hex9d75ad9

165108441 has 8 divisors (see below), whose sum is σ = 223245504. Its totient is φ = 108521840.

The previous prime is 165108431. The next prime is 165108443. The reversal of 165108441 is 144801561.

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 165108441 - 225 = 131554009 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 165108399 and 165108408.

It is not an unprimeable number, because it can be changed into a prime (165108443) 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, 387366 + ... + 387791.

It is an arithmetic number, because the mean of its divisors is an integer number (27905688).

Almost surely, 2165108441 is an apocalyptic number.

It is an amenable number.

165108441 is a deficient number, since it is larger than the sum of its proper divisors (58137063).

165108441 is an equidigital number, since it uses as much as digits as its factorization.

165108441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775231.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 165108441 is about 12849.4529455538. The cubic root of 165108441 is about 548.6007860827.

The spelling of 165108441 in words is "one hundred sixty-five million, one hundred eight thousand, four hundred forty-one".

Divisors: 1 3 71 213 775157 2325471 55036147 165108441