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252693 = 3372191
BaseRepresentation
bin111101101100010101
3110211122000
4331230111
531041233
65225513
72101500
oct755425
9424560
10252693
11162941
12102299
138b02c
1468137
154ed13
hex3db15

252693 has 24 divisors (see below), whose sum is σ = 437760. Its totient is φ = 143640.

The previous prime is 252691. The next prime is 252709. The reversal of 252693 is 396252.

It is not a de Polignac number, because 252693 - 21 = 252691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

252693 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1228 + ... + 1418.

It is an arithmetic number, because the mean of its divisors is an integer number (18240).

2252693 is an apocalyptic number.

It is an amenable number.

252693 is a deficient number, since it is larger than the sum of its proper divisors (185067).

252693 is a wasteful number, since it uses less digits than its factorization.

252693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 201 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 252693 is about 502.6857865506. The cubic root of 252693 is about 63.2214429455.

The spelling of 252693 in words is "two hundred fifty-two thousand, six hundred ninety-three".

Divisors: 1 3 7 9 21 27 49 63 147 189 191 441 573 1323 1337 1719 4011 5157 9359 12033 28077 36099 84231 252693