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253083489 = 384361163
BaseRepresentation
bin11110001010110…
…11111101100001
3122122012222021120
433011123331201
51004242132424
641040242453
76162113511
oct1705337541
9578188246
10253083489
1111a94a40a
1270910429
1340582059
142587d841
1517342a79
hexf15bf61

253083489 has 4 divisors (see below), whose sum is σ = 337444656. Its totient is φ = 168722324.

The previous prime is 253083469. The next prime is 253083521. The reversal of 253083489 is 984380352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 253083489 - 217 = 252952417 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 253083489.

It is not an unprimeable number, because it can be changed into a prime (253083419) 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 3 ways as a sum of consecutive naturals, for example, 42180579 + ... + 42180584.

It is an arithmetic number, because the mean of its divisors is an integer number (84361164).

Almost surely, 2253083489 is an apocalyptic number.

It is an amenable number.

253083489 is a deficient number, since it is larger than the sum of its proper divisors (84361167).

253083489 is an equidigital number, since it uses as much as digits as its factorization.

253083489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84361166.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 253083489 is about 15908.5979583369. The cubic root of 253083489 is about 632.5399175961.

The spelling of 253083489 in words is "two hundred fifty-three million, eighty-three thousand, four hundred eighty-nine".

Divisors: 1 3 84361163 253083489