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165141319 = 7214922619
BaseRepresentation
bin10011101011111…
…01101101000111
3102111202001022011
421311331231013
5314234010234
624215315051
74043451400
oct1165755507
9374661264
10165141319
1185244132
124737ba87
13282a0975
1417d0a9a7
15e770b64
hex9d7db47

165141319 has 12 divisors (see below), whose sum is σ = 193401000. Its totient is φ = 140593488.

The previous prime is 165141299. The next prime is 165141337. The reversal of 165141319 is 913141561.

It is not a de Polignac number, because 165141319 - 213 = 165133127 is a prime.

It is a super-2 number, since 2×1651413192 = 54543310482119522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165141019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4009 + ... + 18610.

It is an arithmetic number, because the mean of its divisors is an integer number (16116750).

Almost surely, 2165141319 is an apocalyptic number.

165141319 is a deficient number, since it is larger than the sum of its proper divisors (28259681).

165141319 is a wasteful number, since it uses less digits than its factorization.

165141319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22782 (or 22775 counting only the distinct ones).

The product of its digits is 3240, while the sum is 31.

The square root of 165141319 is about 12850.7322359467. The cubic root of 165141319 is about 548.6371979089.

The spelling of 165141319 in words is "one hundred sixty-five million, one hundred forty-one thousand, three hundred nineteen".

Divisors: 1 7 49 149 1043 7301 22619 158333 1108331 3370231 23591617 165141319