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134027491 = 1310309807
BaseRepresentation
bin1111111110100…
…01100011100011
3100100012022011011
413333101203203
5233302334431
621144401351
73215133463
oct777214343
9310168134
10134027491
1169722924
1238a76257
13219c8a10
1413b2bba3
15bb76cb1
hex7fd18e3

134027491 has 4 divisors (see below), whose sum is σ = 144337312. Its totient is φ = 123717672.

The previous prime is 134027471. The next prime is 134027497. The reversal of 134027491 is 194720431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 194720431 = 1711454143.

It is not a de Polignac number, because 134027491 - 29 = 134026979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134027497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5154891 + ... + 5154916.

It is an arithmetic number, because the mean of its divisors is an integer number (36084328).

Almost surely, 2134027491 is an apocalyptic number.

134027491 is a deficient number, since it is larger than the sum of its proper divisors (10309821).

134027491 is a wasteful number, since it uses less digits than its factorization.

134027491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10309820.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 134027491 is about 11577.0242722385. The cubic root of 134027491 is about 511.7579867681.

The spelling of 134027491 in words is "one hundred thirty-four million, twenty-seven thousand, four hundred ninety-one".

Divisors: 1 13 10309807 134027491