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134181671 = 13312331429
BaseRepresentation
bin1111111111101…
…11001100100111
3100100111010122112
413333313030213
5233322303141
621151551235
73216345131
oct777671447
9310433575
10134181671
1169818748
1238b2b51b
1321a50c50
1413b6c051
15bba77eb
hex7ff7327

134181671 has 16 divisors (see below), whose sum is σ = 149909760. Its totient is φ = 119266560.

The previous prime is 134181659. The next prime is 134181673. The reversal of 134181671 is 176181431.

It is a cyclic number.

It is not a de Polignac number, because 134181671 - 210 = 134180647 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134181673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93185 + ... + 94613.

It is an arithmetic number, because the mean of its divisors is an integer number (9369360).

Almost surely, 2134181671 is an apocalyptic number.

134181671 is a deficient number, since it is larger than the sum of its proper divisors (15728089).

134181671 is a wasteful number, since it uses less digits than its factorization.

134181671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706.

The product of its digits is 4032, while the sum is 32.

The square root of 134181671 is about 11583.6812369816. The cubic root of 134181671 is about 511.9541470473.

The spelling of 134181671 in words is "one hundred thirty-four million, one hundred eighty-one thousand, six hundred seventy-one".

Divisors: 1 13 31 233 403 1429 3029 7223 18577 44299 93899 332957 575887 4328441 10321667 134181671