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1312905300050 = 252191382005579
BaseRepresentation
bin10011000110101111010…
…000010000100001010010
311122111211121221121210002
4103012233100100201102
5133002312224100200
62443050153010002
7163566005630021
oct23065720204122
94574747847702
101312905300050
114668888a6123
121925493b3902
1396a6398cb66
144778b5028b8
1524241dbcbd5
hex131af410852

1312905300050 has 24 divisors (see below), whose sum is σ = 2570530378800. Its totient is φ = 497522008080.

The previous prime is 1312905300041. The next prime is 1312905300079. The reversal of 1312905300050 is 500035092131.

It is a junction number, because it is equal to n+sod(n) for n = 1312905299986 and 1312905300022.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 691001840 + ... + 691003739.

It is an arithmetic number, because the mean of its divisors is an integer number (107105432450).

Almost surely, 21312905300050 is an apocalyptic number.

1312905300050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312905300050 is a deficient number, since it is larger than the sum of its proper divisors (1257625078750).

1312905300050 is a wasteful number, since it uses less digits than its factorization.

1312905300050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382005610 (or 1382005605 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 29.

The spelling of 1312905300050 in words is "one trillion, three hundred twelve billion, nine hundred five million, three hundred thousand, fifty".

Divisors: 1 2 5 10 19 25 38 50 95 190 475 950 1382005579 2764011158 6910027895 13820055790 26258106001 34550139475 52516212002 69100278950 131290530005 262581060010 656452650025 1312905300050