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13130313129978 = 2311892235327397
BaseRepresentation
bin1011111100010010001110…
…1001100101111111111010
31201111020122002122102110220
42333010203221211333322
53210111340130124403
643531552123120510
72523430254052212
oct277044351457772
951436562572426
1013130313129978
114202597501030
1215808ab373136
1374324c6a7155
14335720d21242
1517b839c4e953
hexbf123a65ffa

13130313129978 has 32 divisors (see below), whose sum is σ = 28969843078080. Its totient is φ = 3934176216960.

The previous prime is 13130313129977. The next prime is 13130313130073. The reversal of 13130313129978 is 87992131303131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13130313129978.

It is not an unprimeable number, because it can be changed into a prime (13130313129977) 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, 1117657825 + ... + 1117669572.

It is an arithmetic number, because the mean of its divisors is an integer number (905307596190).

Almost surely, 213130313129978 is an apocalyptic number.

13130313129978 is an abundant number, since it is smaller than the sum of its proper divisors (15839529948102).

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

13130313129978 is a wasteful number, since it uses less digits than its factorization.

13130313129978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235327502.

The product of its (nonzero) digits is 734832, while the sum is 51.

The spelling of 13130313129978 in words is "thirteen trillion, one hundred thirty billion, three hundred thirteen million, one hundred twenty-nine thousand, nine hundred seventy-eight".

Divisors: 1 2 3 6 11 22 33 66 89 178 267 534 979 1958 2937 5874 2235327397 4470654794 6705982191 13411964382 24588601367 49177202734 73765804101 147531608202 198944138333 397888276666 596832414999 1193664829998 2188385521663 4376771043326 6565156564989 13130313129978