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252750245 = 5113163233
BaseRepresentation
bin11110001000010…
…10100110100101
3122121121001011012
433010022212211
51004201001440
641025152005
76156225116
oct1704124645
9577531135
10252750245
1111a742000
127078b605
1340496477
14257d420d
15172c8e65
hexf10a9a5

252750245 has 32 divisors (see below), whose sum is σ = 337094784. Its totient is φ = 181906560.

The previous prime is 252750229. The next prime is 252750247. The reversal of 252750245 is 542057252.

It is not a de Polignac number, because 252750245 - 24 = 252750229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252750247) 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 31 ways as a sum of consecutive naturals, for example, 1084649 + ... + 1084881.

It is an arithmetic number, because the mean of its divisors is an integer number (10534212).

Almost surely, 2252750245 is an apocalyptic number.

It is an amenable number.

252750245 is a deficient number, since it is larger than the sum of its proper divisors (84344539).

252750245 is a wasteful number, since it uses less digits than its factorization.

252750245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 32.

The square root of 252750245 is about 15898.1208008997. The cubic root of 252750245 is about 632.2621664093.

The spelling of 252750245 in words is "two hundred fifty-two million, seven hundred fifty thousand, two hundred forty-five".

Divisors: 1 5 11 55 121 163 233 605 815 1165 1331 1793 2563 6655 8965 12815 19723 28193 37979 98615 140965 189895 216953 310123 417769 1084765 1550615 2088845 4595459 22977295 50550049 252750245