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31203300330213 = 3112192943118909
BaseRepresentation
bin1110001100001000101011…
…01000011100101011100101
311002111000011122120000101220
413012010111220130223211
513042213324341031323
6150210333121210553
76400235604421224
oct706042550345345
9132430148500356
1031203300330213
119a40277628080
1235bb4aa190a59
1314545c66c366b
1479c367d38cbb
15391a095d00e3
hex1c6115a1cae5

31203300330213 has 16 divisors (see below), whose sum is σ = 45388689422400. Its totient is φ = 18910228292480.

The previous prime is 31203300330199. The next prime is 31203300330287.

31203300330213 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 31203300330213 - 210 = 31203300329189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31203300330913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20835798 + ... + 22283111.

It is an arithmetic number, because the mean of its divisors is an integer number (2836793088900).

Almost surely, 231203300330213 is an apocalyptic number.

31203300330213 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31203300330213 is a deficient number, since it is larger than the sum of its proper divisors (14185389092187).

31203300330213 is a wasteful number, since it uses less digits than its factorization.

31203300330213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43140852.

The product of its (nonzero) digits is 2916, while the sum is 24.

It can be divided in two parts, 31203300 and 330213, that added together give a palindrome (31533513).

The spelling of 31203300330213 in words is "thirty-one trillion, two hundred three billion, three hundred million, three hundred thirty thousand, two hundred thirteen".

Divisors: 1 3 11 33 21929 65787 241219 723657 43118909 129356727 474307999 1422923997 945554555461 2836663666383 10401100110071 31203300330213