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145652 = 22132801
BaseRepresentation
bin100011100011110100
321101210112
4203203310
514130102
63042152
71144433
oct434364
9241715
10145652
119a481
1270358
13513b0
143b11a
152d252
hex238f4

145652 has 12 divisors (see below), whose sum is σ = 274596. Its totient is φ = 67200.

The previous prime is 145643. The next prime is 145661. The reversal of 145652 is 256541.

145652 is nontrivially palindromic in base 3.

145652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (145643) and next prime (145661).

It can be written as a sum of positive squares in 2 ways, for example, as 45796 + 99856 = 214^2 + 316^2 .

It is an alternating number because its digits alternate between odd and even.

It is a zygodrome in base 7.

It is a congruent number.

It is an unprimeable number.

145652 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1349 + ... + 1452.

It is an arithmetic number, because the mean of its divisors is an integer number (22883).

145652 is a Friedman number, since it can be written as 56*51^2-4, using all its digits and the basic arithmetic operations.

2145652 is an apocalyptic number.

It is an amenable number.

145652 is a deficient number, since it is larger than the sum of its proper divisors (128944).

145652 is a wasteful number, since it uses less digits than its factorization.

145652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2818 (or 2816 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 145652 is about 381.6438129985. The cubic root of 145652 is about 52.6145044263.

Subtracting 145652 from its reverse (256541), we obtain a square (110889 = 3332).

It can be divided in two parts, 145 and 652, that added together give a palindrome (797).

The spelling of 145652 in words is "one hundred forty-five thousand, six hundred fifty-two".

Divisors: 1 2 4 13 26 52 2801 5602 11204 36413 72826 145652