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134340013 = 1921971889
BaseRepresentation
bin10000000000111…
…01110110101101
3100100210011212001
420000131312231
5233342340023
621155212301
73220604563
oct1000356655
9310704761
10134340013
1169916705
1238ba7091
1321aa8042
1413bada33
15bbd96ad
hex801ddad

134340013 has 12 divisors (see below), whose sum is σ = 142577820. Its totient is φ = 126556416.

The previous prime is 134339971. The next prime is 134340043. The reversal of 134340013 is 310043431.

It can be written as a sum of positive squares in 2 ways, for example, as 106440489 + 27899524 = 10317^2 + 5282^2 .

It is a de Polignac number, because none of the positive numbers 2k-134340013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134340043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70173 + ... + 72061.

It is an arithmetic number, because the mean of its divisors is an integer number (11881485).

Almost surely, 2134340013 is an apocalyptic number.

It is an amenable number.

134340013 is a deficient number, since it is larger than the sum of its proper divisors (8237807).

134340013 is a wasteful number, since it uses less digits than its factorization.

134340013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124 (or 2105 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 134340013 is about 11590.5139230321. The cubic root of 134340013 is about 512.1554462192.

Adding to 134340013 its reverse (310043431), we get a palindrome (444383444).

The spelling of 134340013 in words is "one hundred thirty-four million, three hundred forty thousand, thirteen".

Divisors: 1 19 197 361 1889 3743 35891 71117 372133 681929 7070527 134340013