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135160493 = 1311299209
BaseRepresentation
bin10000000111001…
…10001010101101
3100102022212100012
420003212022231
5234100113433
621224543005
73230562626
oct1003461255
9312285305
10135160493
116a327096
1239321a65
1322004630
1413d44a4d
15bcec848
hex80e62ad

135160493 has 8 divisors (see below), whose sum is σ = 145702200. Its totient is φ = 124639488.

The previous prime is 135160469. The next prime is 135160513. The reversal of 135160493 is 394061531.

It can be written as a sum of positive squares in 4 ways, for example, as 7628644 + 127531849 = 2762^2 + 11293^2 .

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 135160493 - 216 = 135094957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135160453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10073 + ... + 19281.

It is an arithmetic number, because the mean of its divisors is an integer number (18212775).

Almost surely, 2135160493 is an apocalyptic number.

135160493 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

135160493 is a deficient number, since it is larger than the sum of its proper divisors (10541707).

135160493 is a wasteful number, since it uses less digits than its factorization.

135160493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10351.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 135160493 is about 11625.8545062288. The cubic root of 135160493 is about 513.1959917711.

The spelling of 135160493 in words is "one hundred thirty-five million, one hundred sixty thousand, four hundred ninety-three".

Divisors: 1 13 1129 9209 14677 119717 10396961 135160493