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252748982 = 219109139439
BaseRepresentation
bin11110001000010…
…10010010110110
3122121120222102102
433010022102312
51004200431412
641025142102
76156221333
oct1704122266
9577528372
10252748982
1111a741062
127078a932
1340495a15
14257d398a
15172c88c2
hexf10a4b6

252748982 has 32 divisors (see below), whose sum is σ = 406560000. Its totient is φ = 117503136.

The previous prime is 252748981. The next prime is 252748987. The reversal of 252748982 is 289847252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252748981) 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, 575519 + ... + 575957.

It is an arithmetic number, because the mean of its divisors is an integer number (12705000).

Almost surely, 2252748982 is an apocalyptic number.

252748982 is a deficient number, since it is larger than the sum of its proper divisors (153811018).

252748982 is a wasteful number, since it uses less digits than its factorization.

252748982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708.

The product of its digits is 645120, while the sum is 47.

The square root of 252748982 is about 15898.0810791743. The cubic root of 252748982 is about 632.2611132636.

The spelling of 252748982 in words is "two hundred fifty-two million, seven hundred forty-eight thousand, nine hundred eighty-two".

Divisors: 1 2 19 38 109 139 218 278 439 878 2071 2641 4142 5282 8341 15151 16682 30302 47851 61021 95702 122042 287869 575738 909169 1159399 1818338 2318798 6651289 13302578 126374491 252748982