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1313101205 = 51320201557
BaseRepresentation
bin100111001000100…
…0101010110010101
310101111211110012222
41032101011112111
510142123214310
6334144152125
744353114253
oct11621052625
93344743188
101313101205
11614236409
12307908645
1317c074280
14c65715d3
157a42c055
hex4e445595

1313101205 has 8 divisors (see below), whose sum is σ = 1696930872. Its totient is φ = 969674688.

The previous prime is 1313101159. The next prime is 1313101217. The reversal of 1313101205 is 5021013131.

It can be written as a sum of positive squares in 4 ways, for example, as 3964081 + 1309137124 = 1991^2 + 36182^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1313101205 - 214 = 1313084821 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10100714 + ... + 10100843.

It is an arithmetic number, because the mean of its divisors is an integer number (212116359).

Almost surely, 21313101205 is an apocalyptic number.

It is an amenable number.

1313101205 is a deficient number, since it is larger than the sum of its proper divisors (383829667).

1313101205 is a wasteful number, since it uses less digits than its factorization.

1313101205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20201575.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1313101205 is about 36236.7383328025. The cubic root of 1313101205 is about 1095.0469333455.

Adding to 1313101205 its reverse (5021013131), we get a palindrome (6334114336).

The spelling of 1313101205 in words is "one billion, three hundred thirteen million, one hundred one thousand, two hundred five".

Divisors: 1 5 13 65 20201557 101007785 262620241 1313101205