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20110253 = 29719767
BaseRepresentation
bin100110010110…
…1101110101101
31101211201002012
41030231232231
520122012003
61555011005
7332635322
oct114555655
941751065
1020110253
1110396149
126899a65
134221677
142956b49
151b738d8
hex132dbad

20110253 has 8 divisors (see below), whose sum is σ = 21098880. Its totient is φ = 19141360.

The previous prime is 20110243. The next prime is 20110273. The reversal of 20110253 is 35201102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20110253 - 212 = 20106157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2825 + ... + 6942.

It is an arithmetic number, because the mean of its divisors is an integer number (2637360).

Almost surely, 220110253 is an apocalyptic number.

It is an amenable number.

20110253 is a deficient number, since it is larger than the sum of its proper divisors (988627).

20110253 is an equidigital number, since it uses as much as digits as its factorization.

20110253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9867.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 20110253 is about 4484.4456736591. The cubic root of 20110253 is about 271.9396357178.

Adding to 20110253 its reverse (35201102), we get a palindrome (55311355).

The spelling of 20110253 in words is "twenty million, one hundred ten thousand, two hundred fifty-three".

Divisors: 1 29 71 2059 9767 283243 693457 20110253