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20331200310 = 2354714419291
BaseRepresentation
bin10010111011110101…
…010111111100110110
31221110220201222122220
4102323311113330312
5313114241402220
613201240103210
71316553231321
oct227365277466
957426658586
1020331200310
118693483793
123b34a64b06
131bc01aab55
14dac29b7b8
157ded8e540
hex4bbd57f36

20331200310 has 32 divisors (see below), whose sum is σ = 49833073152. Its totient is φ = 5306298720.

The previous prime is 20331200261. The next prime is 20331200311. The reversal of 20331200310 is 1300213302.

It is a super-2 number, since 2×203312003102 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20331200310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331200311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7208236 + ... + 7211055.

It is an arithmetic number, because the mean of its divisors is an integer number (1557283536).

Almost surely, 220331200310 is an apocalyptic number.

20331200310 is an abundant number, since it is smaller than the sum of its proper divisors (29501872842).

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

20331200310 is a wasteful number, since it uses less digits than its factorization.

20331200310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14419348.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20331200310 its reverse (1300213302), we get a palindrome (21631413612).

The spelling of 20331200310 in words is "twenty billion, three hundred thirty-one million, two hundred thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 47 94 141 235 282 470 705 1410 14419291 28838582 43257873 72096455 86515746 144192910 216289365 432578730 677706677 1355413354 2033120031 3388533385 4066240062 6777066770 10165600155 20331200310