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213031240030 = 25721114423239
BaseRepresentation
bin1100011001100110100…
…1101100000101011110
3202100212111212021020001
43012121221230011132
511442241444140110
6241510514444514
721251053443310
oct3063151540536
9670774767201
10213031240030
1182389643764
123535389373a
131712000b3ab
14a44ca5d7b0
15581c4e763a
hex3199a6c15e

213031240030 has 32 divisors (see below), whose sum is σ = 440312670720. Its totient is φ = 72693119520.

The previous prime is 213031240001. The next prime is 213031240033. The reversal of 213031240030 is 30042130312.

213031240030 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213031240033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7196850 + ... + 7226389.

It is an arithmetic number, because the mean of its divisors is an integer number (13759770960).

Almost surely, 2213031240030 is an apocalyptic number.

213031240030 is an abundant number, since it is smaller than the sum of its proper divisors (227281430690).

213031240030 is a wasteful number, since it uses less digits than its factorization.

213031240030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14423464.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 213031240030 its reverse (30042130312), we get a palindrome (243073370342).

The spelling of 213031240030 in words is "two hundred thirteen billion, thirty-one million, two hundred forty thousand, thirty".

Divisors: 1 2 5 7 10 14 35 70 211 422 1055 1477 2110 2954 7385 14770 14423239 28846478 72116195 100962673 144232390 201925346 504813365 1009626730 3043303429 6086606858 15216517145 21303124003 30433034290 42606248006 106515620015 213031240030