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1311313321300 = 225229394461767
BaseRepresentation
bin10011000101010000010…
…111010101110101010100
311122100201200100201111011
4103011100113111311110
5132441032202240200
62442224203222004
7163511365215403
oct23052027256524
94570650321434
101311313321300
11466141202a04
12192184217904
139686bc050b8
1447679cd963a
152419c2555ba
hex131505d5d54

1311313321300 has 36 divisors (see below), whose sum is σ = 2846518748640. Its totient is φ = 524346740320.

The previous prime is 1311313321271. The next prime is 1311313321303. The reversal of 1311313321300 is 31233131131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311313321303) 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 11 ways as a sum of consecutive naturals, for example, 1936984 + ... + 2524783.

It is an arithmetic number, because the mean of its divisors is an integer number (79069965240).

Almost surely, 21311313321300 is an apocalyptic number.

1311313321300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311313321300 is an abundant number, since it is smaller than the sum of its proper divisors (1535205427340).

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

1311313321300 is a wasteful number, since it uses less digits than its factorization.

1311313321300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4464720 (or 4464713 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 1311313321300 its reverse (31233131131), we get a palindrome (1342546452431).

The spelling of 1311313321300 in words is "one trillion, three hundred eleven billion, three hundred thirteen million, three hundred twenty-one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 2939 5878 11756 14695 29390 58780 73475 146950 293900 4461767 8923534 17847068 22308835 44617670 89235340 111544175 223088350 446176700 13113133213 26226266426 52452532852 65565666065 131131332130 262262664260 327828330325 655656660650 1311313321300