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253030250 = 25311101911
BaseRepresentation
bin11110001010011…
…10111101101010
3122122010021020202
433011032331222
51004233432000
641035152202
76161502344
oct1705167552
9578107222
10253030250
1111a913410
12708a5662
1340563a55
1425868294
1517331dd5
hexf14ef6a

253030250 has 64 divisors (see below), whose sum is σ = 522422784. Its totient is φ = 91000000.

The previous prime is 253030243. The next prime is 253030259. The reversal of 253030250 is 52030352.

It is not an unprimeable number, because it can be changed into a prime (253030259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277295 + ... + 278205.

It is an arithmetic number, because the mean of its divisors is an integer number (8162856).

Almost surely, 2253030250 is an apocalyptic number.

253030250 is an abundant number, since it is smaller than the sum of its proper divisors (269392534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253030250 is a wasteful number, since it uses less digits than its factorization.

253030250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040 (or 1030 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 253030250 is about 15906.9245927678. The cubic root of 253030250 is about 632.4955604890.

It can be divided in two parts, 2530302 and 50, that added together give a palindrome (2530352).

The spelling of 253030250 in words is "two hundred fifty-three million, thirty thousand, two hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 101 110 125 202 250 275 505 550 911 1010 1111 1375 1822 2222 2525 2750 4555 5050 5555 9110 10021 11110 12625 20042 22775 25250 27775 45550 50105 55550 92011 100210 113875 138875 184022 227750 250525 277750 460055 501050 920110 1012121 1252625 2024242 2300275 2505250 4600550 5060605 10121210 11501375 23002750 25303025 50606050 126515125 253030250