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213013303230 = 235721359188927
BaseRepresentation
bin1100011001100010010…
…1010000111110111110
3202100211021002222120010
43012120211100332332
511442222401200410
6241505034204050
721250445126400
oct3063045207676
9670737088503
10213013303230
118237a502562
1235349883626
131711939b0c0
14a44a510b70
15581ab52c20
hex3198950fbe

213013303230 has 192 divisors, whose sum is σ = 651302830080. Its totient is φ = 44181478656.

The previous prime is 213013303159. The next prime is 213013303231. The reversal of 213013303230 is 32303310312.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 213013303197 and 213013303206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213013303231) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1033027 + ... + 1221953.

It is an arithmetic number, because the mean of its divisors is an integer number (3392202240).

Almost surely, 2213013303230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213013303230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325651415040).

213013303230 is an abundant number, since it is smaller than the sum of its proper divisors (438289526850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213013303230 is a wasteful number, since it uses less digits than its factorization.

213013303230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189023 (or 189016 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 213013303230 its reverse (32303310312), we get a palindrome (245316613542).

The spelling of 213013303230 in words is "two hundred thirteen billion, thirteen million, three hundred three thousand, two hundred thirty".