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420210213 = 31959124951
BaseRepresentation
bin11001000010111…
…110011000100101
31002021200220001020
4121002332120211
51330033211323
6105410321353
713261504443
oct3102763045
91067626036
10420210213
111a621a175
12b8889259
13690995c7
143db45b93
1526d56ae3
hex190be625

420210213 has 16 divisors (see below), whose sum is σ = 599769600. Its totient is φ = 260895600.

The previous prime is 420210187. The next prime is 420210223. The reversal of 420210213 is 312012024.

It is not a de Polignac number, because 420210213 - 25 = 420210181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420210192 and 420210201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420210223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59113 + ... + 65838.

It is an arithmetic number, because the mean of its divisors is an integer number (37485600).

Almost surely, 2420210213 is an apocalyptic number.

It is an amenable number.

420210213 is a deficient number, since it is larger than the sum of its proper divisors (179559387).

420210213 is a wasteful number, since it uses less digits than its factorization.

420210213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125032.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 420210213 is about 20499.0295623964. The cubic root of 420210213 is about 749.0121590204.

Adding to 420210213 its reverse (312012024), we get a palindrome (732222237).

The spelling of 420210213 in words is "four hundred twenty million, two hundred ten thousand, two hundred thirteen".

Divisors: 1 3 19 57 59 177 1121 3363 124951 374853 2374069 7122207 7372109 22116327 140070071 420210213