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1313144405 = 52311418647
BaseRepresentation
bin100111001000100…
…1111111001010101
310101111220122110222
41032101033321111
510142131110110
6334145124125
744353354226
oct11621177125
93344818428
101313144405
11614265911
12307929645
1317c08ab31
14c658324d
157a439c55
hex4e44fe55

1313144405 has 8 divisors (see below), whose sum is σ = 1644285312. Its totient is φ = 1004840848.

The previous prime is 1313144381. The next prime is 1313144461. The reversal of 1313144405 is 5044413131.

It is a happy number.

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 1313144405 - 26 = 1313144341 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5709209 + ... + 5709438.

It is an arithmetic number, because the mean of its divisors is an integer number (205535664).

Almost surely, 21313144405 is an apocalyptic number.

It is an amenable number.

1313144405 is a deficient number, since it is larger than the sum of its proper divisors (331140907).

1313144405 is a wasteful number, since it uses less digits than its factorization.

1313144405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11418675.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1313144405 is about 36237.3344080383. The cubic root of 1313144405 is about 1095.0589419423.

Adding to 1313144405 its reverse (5044413131), we get a palindrome (6357557536).

The spelling of 1313144405 in words is "one billion, three hundred thirteen million, one hundred forty-four thousand, four hundred five".

Divisors: 1 5 23 115 11418647 57093235 262628881 1313144405