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134172983 = 727769197
BaseRepresentation
bin1111111111101…
…01000100110111
3100100110200201202
413333311010313
5233322013413
621151443115
73216310610
oct777650467
9310420652
10134172983
116981216a
1238b2649b
1321a49cc9
1413b68c07
15bba4e58
hex7ff5137

134172983 has 8 divisors (see below), whose sum is σ = 153896352. Its totient is φ = 114588576.

The previous prime is 134172979. The next prime is 134173037. The reversal of 134172983 is 389271431.

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 134172983 - 22 = 134172979 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134172953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32660 + ... + 36537.

It is an arithmetic number, because the mean of its divisors is an integer number (19237044).

Almost surely, 2134172983 is an apocalyptic number.

134172983 is a deficient number, since it is larger than the sum of its proper divisors (19723369).

134172983 is an equidigital number, since it uses as much as digits as its factorization.

134172983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69481.

The product of its digits is 36288, while the sum is 38.

The square root of 134172983 is about 11583.3062205918. The cubic root of 134172983 is about 511.9430974665.

The spelling of 134172983 in words is "one hundred thirty-four million, one hundred seventy-two thousand, nine hundred eighty-three".

Divisors: 1 7 277 1939 69197 484379 19167569 134172983