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253243041 = 32397157241
BaseRepresentation
bin11110001100000…
…10111010100001
3122122112002010220
433012002322201
51004312234131
641043513253
76163346622
oct1706027241
9578462126
10253243041
1111aa49277
1270988829
134060986c
14258c1a49
1517374e96
hexf182ea1

253243041 has 32 divisors (see below), whose sum is σ = 359724288. Its totient is φ = 158146560.

The previous prime is 253243027. The next prime is 253243069. The reversal of 253243041 is 140342352.

It is not a de Polignac number, because 253243041 - 25 = 253243009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253243021) 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, 1050681 + ... + 1050921.

It is an arithmetic number, because the mean of its divisors is an integer number (11241384).

Almost surely, 2253243041 is an apocalyptic number.

It is an amenable number.

253243041 is a deficient number, since it is larger than the sum of its proper divisors (106481247).

253243041 is a wasteful number, since it uses less digits than its factorization.

253243041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 253243041 is about 15913.6118150469. The cubic root of 253243041 is about 632.6728141992.

Adding to 253243041 its reverse (140342352), we get a palindrome (393585393).

The spelling of 253243041 in words is "two hundred fifty-three million, two hundred forty-three thousand, forty-one".

Divisors: 1 3 23 69 97 157 241 291 471 723 2231 3611 5543 6693 10833 15229 16629 23377 37837 45687 70131 113511 350267 537671 870251 1050801 1613013 2610753 3670189 11010567 84414347 253243041