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1310533272681 = 3571176491757
BaseRepresentation
bin10011000100100001110…
…111101100010001101001
311122021201022120010221120
4103010201313230101221
5132432433004211211
62442014540125453
7163453144006233
oct23044167542151
94567638503846
101310533272681
11465880959926
12191ba6b36889
1396776419479
1447604485253
1524153a1ed06
hex13121dec469

1310533272681 has 8 divisors (see below), whose sum is σ = 1747683686784. Its totient is φ = 873535853520.

The previous prime is 1310533272679. The next prime is 1310533272757. The reversal of 1310533272681 is 1862723350131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1310533272681 - 21 = 1310533272679 is a prime.

It is a super-2 number, since 2×13105332726812 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1310533272781) 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 7 ways as a sum of consecutive naturals, for example, 38228746 + ... + 38263011.

It is an arithmetic number, because the mean of its divisors is an integer number (218460460848).

Almost surely, 21310533272681 is an apocalyptic number.

It is an amenable number.

1310533272681 is a deficient number, since it is larger than the sum of its proper divisors (437150414103).

1310533272681 is an equidigital number, since it uses as much as digits as its factorization.

1310533272681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76497471.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 1310533272681 in words is "one trillion, three hundred ten billion, five hundred thirty-three million, two hundred seventy-two thousand, six hundred eighty-one".

Divisors: 1 3 5711 17133 76491757 229475271 436844424227 1310533272681