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210530053 = 2921671499
BaseRepresentation
bin11001000110001…
…10111100000101
3112200011000221101
430203012330011
5412343430203
632520220101
75134322146
oct1443067405
9480130841
10210530053
11a8925388
125a60a631
13348031c6
141dd63acd
151373941d
hexc8c6f05

210530053 has 12 divisors (see below), whose sum is σ = 219492000. Its totient is φ = 201918416.

The previous prime is 210530011. The next prime is 210530069. The reversal of 210530053 is 350035012.

It is not a de Polignac number, because 210530053 - 29 = 210529541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210530053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210530003) 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 11 ways as a sum of consecutive naturals, for example, 139698 + ... + 141196.

It is an arithmetic number, because the mean of its divisors is an integer number (18291000).

Almost surely, 2210530053 is an apocalyptic number.

It is an amenable number.

210530053 is a deficient number, since it is larger than the sum of its proper divisors (8961947).

210530053 is a wasteful number, since it uses less digits than its factorization.

210530053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724 (or 1695 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 210530053 is about 14509.6537863589. The cubic root of 210530053 is about 594.8918693413.

Adding to 210530053 its reverse (350035012), we get a palindrome (560565065).

The spelling of 210530053 in words is "two hundred ten million, five hundred thirty thousand, fifty-three".

Divisors: 1 29 167 841 1499 4843 43471 140447 250333 1260659 7259657 210530053