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20331310230030 = 235677710341001
BaseRepresentation
bin1001001111101110000001…
…00001100010101000001110
32122222122122222010000111010
410213313000201202220032
510131102010404330110
6111124024110110050
74165613551351602
oct447670041425016
978878588100433
1020331310230030
1165295076525a8
1223444167ab326
13b46307a84b77
1450407d82d502
15253ce61d0020
hex127dc0862a0e

20331310230030 has 16 divisors (see below), whose sum is σ = 48795144552144. Its totient is φ = 5421682728000.

The previous prime is 20331310230013. The next prime is 20331310230067. The reversal of 20331310230030 is 3003201313302.

It is a junction number, because it is equal to n+sod(n) for n = 20331310229979 and 20331310230006.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 338855170471 + ... + 338855170530.

It is an arithmetic number, because the mean of its divisors is an integer number (3049696534509).

Almost surely, 220331310230030 is an apocalyptic number.

20331310230030 is an abundant number, since it is smaller than the sum of its proper divisors (28463834322114).

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

20331310230030 is a wasteful number, since it uses less digits than its factorization.

20331310230030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677710341011.

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

Adding to 20331310230030 its reverse (3003201313302), we get a palindrome (23334511543332).

The spelling of 20331310230030 in words is "twenty trillion, three hundred thirty-one billion, three hundred ten million, two hundred thirty thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 677710341001 1355420682002 2033131023003 3388551705005 4066262046006 6777103410010 10165655115015 20331310230030