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252545252 = 225973107137
BaseRepresentation
bin11110000110110…
…00100011100100
3122121012121221212
433003120203210
51004122422002
641020530552
76154412351
oct1703304344
9577177855
10252545252
1111a611a93
12706b0a58
134042407b
142577d628
1517288352
hexf0d88e4

252545252 has 48 divisors (see below), whose sum is σ = 463216320. Its totient is φ = 120402432.

The previous prime is 252545231. The next prime is 252545257.

252545252 is nontrivially palindromic in base 10.

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

It is not an unprimeable number, because it can be changed into a prime (252545257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1843328 + ... + 1843464.

It is an arithmetic number, because the mean of its divisors is an integer number (9650340).

Almost surely, 2252545252 is an apocalyptic number.

It is an amenable number.

252545252 is a deficient number, since it is larger than the sum of its proper divisors (210671068).

252545252 is a wasteful number, since it uses less digits than its factorization.

252545252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 378 counting only the distinct ones).

The product of its digits is 40000, while the sum is 32.

The square root of 252545252 is about 15891.6724104167. The cubic root of 252545252 is about 632.0911881722.

Adding to 252545252 its product of digits (40000), we get a palindrome (252585252).

Subtracting from 252545252 its product of digits (40000), we obtain a palindrome (252505252).

The spelling of 252545252 in words is "two hundred fifty-two million, five hundred forty-five thousand, two hundred fifty-two".

Divisors: 1 2 4 59 73 107 118 137 146 214 236 274 292 428 548 4307 6313 7811 8083 8614 10001 12626 14659 15622 16166 17228 20002 25252 29318 31244 32332 40004 58636 460849 590059 864881 921698 1070107 1180118 1729762 1843396 2140214 2360236 3459524 4280428 63136313 126272626 252545252