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165013199 = 1397130859
BaseRepresentation
bin10011101010111…
…10011011001111
3102111111112112222
421311132123033
5314220410244
624212445555
74042406021
oct1165363317
9374445488
10165013199
118516694a
12473198bb
1328257560
1417cb6011
15e747bee
hex9d5e6cf

165013199 has 8 divisors (see below), whose sum is σ = 179539920. Its totient is φ = 150748416.

The previous prime is 165013187. The next prime is 165013207. The reversal of 165013199 is 991310561.

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

It is not a de Polignac number, because 165013199 - 216 = 164947663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165013129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64169 + ... + 66690.

It is an arithmetic number, because the mean of its divisors is an integer number (22442490).

Almost surely, 2165013199 is an apocalyptic number.

165013199 is a deficient number, since it is larger than the sum of its proper divisors (14526721).

165013199 is a wasteful number, since it uses less digits than its factorization.

165013199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130969.

The product of its (nonzero) digits is 7290, while the sum is 35.

The square root of 165013199 is about 12845.7463387691. The cubic root of 165013199 is about 548.4952798961.

The spelling of 165013199 in words is "one hundred sixty-five million, thirteen thousand, one hundred ninety-nine".

Divisors: 1 13 97 1261 130859 1701167 12693323 165013199