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152065 = 5171789
BaseRepresentation
bin100101001000000001
321201121001
4211020001
514331230
63132001
71202224
oct451001
9251531
10152065
11a4281
1274001
13542a4
143d5bb
15300ca
hex25201

152065 has 8 divisors (see below), whose sum is σ = 193320. Its totient is φ = 114432.

The previous prime is 152063. The next prime is 152077. The reversal of 152065 is 560251.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 69696 + 82369 = 264^2 + 287^2 .

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 152065 - 21 = 152063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (152063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 810 + ... + 979.

It is an arithmetic number, because the mean of its divisors is an integer number (24165).

It is a Proth number, since it is equal to 297 ⋅ 29 + 1 and 297 < 29.

2152065 is an apocalyptic number.

It is an amenable number.

152065 is a deficient number, since it is larger than the sum of its proper divisors (41255).

152065 is a wasteful number, since it uses less digits than its factorization.

152065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 152065 is about 389.9551256234. The cubic root of 152065 is about 53.3756391757.

It can be divided in two parts, 15 and 2065, that added together give a triangular number (2080 = T64).

The spelling of 152065 in words is "one hundred fifty-two thousand, sixty-five".

Divisors: 1 5 17 85 1789 8945 30413 152065