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23210130213 = 32499210357
BaseRepresentation
bin10101100111011011…
…100111101100100101
32012220112221210001100
4111213123213230211
5340013243131323
614355041350313
71451111565054
oct254733475445
965815853040
1023210130213
1199305713a6
1245b9038399
13225b78237a
1411a278a39b
1590c9ba943
hex5676e7b25

23210130213 has 18 divisors (see below), whose sum is σ = 33596307654. Its totient is φ = 15440920272.

The previous prime is 23210130211. The next prime is 23210130241. The reversal of 23210130213 is 31203101232.

23210130213 is a `hidden beast` number, since 2 + 321 + 0 + 130 + 213 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19801555524 + 3408574689 = 140718^2 + 58383^2 .

It is not a de Polignac number, because 23210130213 - 21 = 23210130211 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23210130211) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2235831 + ... + 2246187.

Almost surely, 223210130213 is an apocalyptic number.

It is an amenable number.

23210130213 is a deficient number, since it is larger than the sum of its proper divisors (10386177441).

23210130213 is an equidigital number, since it uses as much as digits as its factorization.

23210130213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11361 (or 10859 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23210130213 its reverse (31203101232), we get a palindrome (54413231445).

The spelling of 23210130213 in words is "twenty-three billion, two hundred ten million, one hundred thirty thousand, two hundred thirteen".

Divisors: 1 3 9 499 1497 4491 10357 31071 93213 249001 747003 2241009 5168143 15504429 46513287 2578903357 7736710071 23210130213