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134441431 = 2273491697
BaseRepresentation
bin10000000001101…
…10100111010111
3100100222022222021
420000312213113
5233404111211
621201314011
73221506345
oct1000664727
9310868867
10134441431
1169985923
1239035907
1321b12257
1413bd8995
15bc09771
hex80369d7

134441431 has 8 divisors (see below), whose sum is σ = 135500400. Its totient is φ = 133387008.

The previous prime is 134441413. The next prime is 134441441. The reversal of 134441431 is 134144431.

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 134441431 - 225 = 100886999 is a prime.

It is a super-2 number, since 2×1344414312 = 36148996738655522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134441396 and 134441405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134441401) 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 7 ways as a sum of consecutive naturals, for example, 78375 + ... + 80071.

It is an arithmetic number, because the mean of its divisors is an integer number (16937550).

Almost surely, 2134441431 is an apocalyptic number.

134441431 is a deficient number, since it is larger than the sum of its proper divisors (1058969).

134441431 is a wasteful number, since it uses less digits than its factorization.

134441431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273.

The product of its digits is 2304, while the sum is 25.

The square root of 134441431 is about 11594.8881409007. Note that the first 3 decimals coincide. The cubic root of 134441431 is about 512.2842951860.

Adding to 134441431 its reverse (134144431), we get a palindrome (268585862).

It can be divided in two parts, 13 and 4441431, that added together give a palindrome (4441444).

The spelling of 134441431 in words is "one hundred thirty-four million, four hundred forty-one thousand, four hundred thirty-one".

Divisors: 1 227 349 1697 79223 385219 592253 134441431