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152105 = 5291049
BaseRepresentation
bin100101001000101001
321201122112
4211020221
514331410
63132105
71202312
oct451051
9251575
10152105
11a4308
1274035
1354305
143d609
1530105
hex25229

152105 has 8 divisors (see below), whose sum is σ = 189000. Its totient is φ = 117376.

The previous prime is 152093. The next prime is 152111. The reversal of 152105 is 501251.

It can be written as a sum of positive squares in 4 ways, for example, as 44521 + 107584 = 211^2 + 328^2 .

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 152105 - 26 = 152041 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 152105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380 + ... + 669.

It is an arithmetic number, because the mean of its divisors is an integer number (23625).

2152105 is an apocalyptic number.

It is an amenable number.

152105 is a deficient number, since it is larger than the sum of its proper divisors (36895).

152105 is a wasteful number, since it uses less digits than its factorization.

152105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 152105 is about 390.0064102037. The cubic root of 152105 is about 53.3803188377.

Adding to 152105 its reverse (501251), we get a palindrome (653356).

The spelling of 152105 in words is "one hundred fifty-two thousand, one hundred five".

Divisors: 1 5 29 145 1049 5245 30421 152105