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165214142 = 2463178417
BaseRepresentation
bin10011101100011…
…11011110111110
3102111212202012022
421312033132332
5314243323032
624221040142
74044203612
oct1166173676
9374782168
10165214142
1185293915
12473b6052
13282c7b62
1417d29342
15e787512
hex9d8f7be

165214142 has 8 divisors (see below), whose sum is σ = 248357856. Its totient is φ = 82428192.

The previous prime is 165214121. The next prime is 165214207. The reversal of 165214142 is 241412561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88283 + ... + 90134.

It is an arithmetic number, because the mean of its divisors is an integer number (31044732).

Almost surely, 2165214142 is an apocalyptic number.

165214142 is a deficient number, since it is larger than the sum of its proper divisors (83143714).

165214142 is a wasteful number, since it uses less digits than its factorization.

165214142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178882.

The product of its digits is 1920, while the sum is 26.

The square root of 165214142 is about 12853.5653419586. The cubic root of 165214142 is about 548.7178309399.

The spelling of 165214142 in words is "one hundred sixty-five million, two hundred fourteen thousand, one hundred forty-two".

Divisors: 1 2 463 926 178417 356834 82607071 165214142