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13130311131312 = 243273548148569
BaseRepresentation
bin1011111100010010001110…
…0001111110000010110000
31201111020121221212212211020
42333010203201332002300
53210111334122200222
643531552012215440
72523430231056204
oct277044341760260
951436557785736
1013130311131312
114202596366441
1215808aa76a580
1374324c1574cb
14335720960b04
1517b8399a765c
hexbf12387e0b0

13130311131312 has 20 divisors (see below), whose sum is σ = 33919970422680. Its totient is φ = 4376770377088.

The previous prime is 13130311131277. The next prime is 13130311131331. The reversal of 13130311131312 is 21313111303131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136774074237 + ... + 136774074332.

It is an arithmetic number, because the mean of its divisors is an integer number (1695998521134).

Almost surely, 213130311131312 is an apocalyptic number.

13130311131312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13130311131312 is an abundant number, since it is smaller than the sum of its proper divisors (20789659291368).

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

13130311131312 is a wasteful number, since it uses less digits than its factorization.

13130311131312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273548148580 (or 273548148574 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 24.

Adding to 13130311131312 its reverse (21313111303131), we get a palindrome (34443422434443).

The spelling of 13130311131312 in words is "thirteen trillion, one hundred thirty billion, three hundred eleven million, one hundred thirty-one thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 48 273548148569 547096297138 820644445707 1094192594276 1641288891414 2188385188552 3282577782828 4376770377104 6565155565656 13130311131312