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1312311302200 = 235212175391583
BaseRepresentation
bin10011000110001011110…
…110010101100000111000
311122110022020020101220201
4103012023312111200320
5133000103143132300
62442511213331544
7163545204006613
oct23061366254070
94573266211821
101312311302200
11466603577808
12192402496bb4
139699a8b6242
144773267d17a
1524209b8866a
hex1318bd95838

1312311302200 has 48 divisors (see below), whose sum is σ = 3053631430080. Its totient is φ = 524493096960.

The previous prime is 1312311302161. The next prime is 1312311302213. The reversal of 1312311302200 is 22031132131.

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 11 ways as a sum of consecutive naturals, for example, 2452392 + ... + 2939191.

It is an arithmetic number, because the mean of its divisors is an integer number (63617321460).

Almost surely, 21312311302200 is an apocalyptic number.

1312311302200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312311302200 is an abundant number, since it is smaller than the sum of its proper divisors (1741320127880).

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

1312311302200 is a wasteful number, since it uses less digits than its factorization.

1312311302200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5392816 (or 5392807 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1312311302200 its reverse (22031132131), we get a palindrome (1334342434331).

The spelling of 1312311302200 in words is "one trillion, three hundred twelve billion, three hundred eleven million, three hundred two thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 1217 2434 4868 6085 9736 12170 24340 30425 48680 60850 121700 243400 5391583 10783166 21566332 26957915 43132664 53915830 107831660 134789575 215663320 269579150 539158300 1078316600 6561556511 13123113022 26246226044 32807782555 52492452088 65615565110 131231130220 164038912775 262462260440 328077825550 656155651100 1312311302200