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253030 = 2525303
BaseRepresentation
bin111101110001100110
3110212002111
4331301212
531044110
65231234
72102461
oct756146
9425074
10253030
11163118
1210251a
138b22b
14682d8
154ee8a
hex3dc66

253030 has 8 divisors (see below), whose sum is σ = 455472. Its totient is φ = 101208.

The previous prime is 253013. The next prime is 253049. The reversal of 253030 is 30352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 253030.

It is a congruent number.

It is an unprimeable number.

253030 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12642 + ... + 12661.

It is an arithmetic number, because the mean of its divisors is an integer number (56934).

2253030 is an apocalyptic number.

253030 is a deficient number, since it is larger than the sum of its proper divisors (202442).

253030 is a wasteful number, since it uses less digits than its factorization.

253030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25310.

The product of its (nonzero) digits is 90, while the sum is 13.

The square root of 253030 is about 503.0208743184. The cubic root of 253030 is about 63.2495352182.

Adding to 253030 its reverse (30352), we get a palindrome (283382).

The spelling of 253030 in words is "two hundred fifty-three thousand, thirty".

Divisors: 1 2 5 10 25303 50606 126515 253030