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152217 = 32131301
BaseRepresentation
bin100101001010011001
321201210200
4211022121
514332332
63132413
71202532
oct451231
9251720
10152217
11a43aa
1274109
1354390
143d689
153017c
hex25299

152217 has 12 divisors (see below), whose sum is σ = 236964. Its totient is φ = 93600.

The previous prime is 152213. The next prime is 152219. The reversal of 152217 is 712251.

It can be written as a sum of positive squares in 2 ways, for example, as 7056 + 145161 = 84^2 + 381^2 .

It is not a de Polignac number, because 152217 - 22 = 152213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 152217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 534 + ... + 767.

It is an arithmetic number, because the mean of its divisors is an integer number (19747).

2152217 is an apocalyptic number.

It is an amenable number.

152217 is a deficient number, since it is larger than the sum of its proper divisors (84747).

152217 is a wasteful number, since it uses less digits than its factorization.

152217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320 (or 1317 counting only the distinct ones).

The product of its digits is 140, while the sum is 18.

The square root of 152217 is about 390.1499711649. The cubic root of 152217 is about 53.3934175281.

Adding to 152217 its reverse (712251), we get a palindrome (864468).

The spelling of 152217 in words is "one hundred fifty-two thousand, two hundred seventeen".

Divisors: 1 3 9 13 39 117 1301 3903 11709 16913 50739 152217