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210530033 = 731879437
BaseRepresentation
bin11001000110001…
…10111011110001
3112200011000220122
430203012323301
5412343430113
632520220025
75134322120
oct1443067361
9480130818
10210530033
11a892536a
125a60a615
13348031ac
141dd63ab7
1513739408
hexc8c6ef1

210530033 has 8 divisors (see below), whose sum is σ = 240706752. Its totient is φ = 180378576.

The previous prime is 210530011. The next prime is 210530069. The reversal of 210530033 is 330035012.

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

It is not a de Polignac number, because 210530033 - 28 = 210529777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 210529993 and 210530020.

It is not an unprimeable number, because it can be changed into a prime (210530003) 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, 17591 + ... + 27027.

It is an arithmetic number, because the mean of its divisors is an integer number (30088344).

Almost surely, 2210530033 is an apocalyptic number.

It is an amenable number.

210530033 is a deficient number, since it is larger than the sum of its proper divisors (30176719).

210530033 is an equidigital number, since it uses as much as digits as its factorization.

210530033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12631.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 210530033 is about 14509.6530971626. The cubic root of 210530033 is about 594.8918505033.

Adding to 210530033 its reverse (330035012), we get a palindrome (540565045).

The spelling of 210530033 in words is "two hundred ten million, five hundred thirty thousand, thirty-three".

Divisors: 1 7 3187 9437 22309 66059 30075719 210530033