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252001330 = 25716721557
BaseRepresentation
bin11110000010100…
…11110000110010
3122120011222211121
433001103300302
51004003020310
641001132454
76146655520
oct1701236062
9576158747
10252001330
1111a280369
127048a12a
1340293619
142567b310
15171cc0da
hexf053c32

252001330 has 32 divisors (see below), whose sum is σ = 521531136. Its totient is φ = 85879104.

The previous prime is 252001297. The next prime is 252001349. The reversal of 252001330 is 33100252.

It is an unprimeable number.

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, 912 + ... + 22468.

It is an arithmetic number, because the mean of its divisors is an integer number (16297848).

Almost surely, 2252001330 is an apocalyptic number.

252001330 is an abundant number, since it is smaller than the sum of its proper divisors (269529806).

252001330 is a wasteful number, since it uses less digits than its factorization.

252001330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21738.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 252001330 is about 15874.5497573947. The cubic root of 252001330 is about 631.6370709751.

Adding to 252001330 its reverse (33100252), we get a palindrome (285101582).

The spelling of 252001330 in words is "two hundred fifty-two million, one thousand, three hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 167 334 835 1169 1670 2338 5845 11690 21557 43114 107785 150899 215570 301798 754495 1508990 3600019 7200038 18000095 25200133 36000190 50400266 126000665 252001330