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117247 = 1329311
BaseRepresentation
bin11100100111111111
312221211111
4130213333
512222442
62302451
7665554
oct344777
9187744
10117247
11800a9
1257a27
13414a0
1430a2b
1524b17
hex1c9ff

117247 has 8 divisors (see below), whose sum is σ = 131040. Its totient is φ = 104160.

The previous prime is 117241. The next prime is 117251. The reversal of 117247 is 742711.

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 117247 - 23 = 117239 is a prime.

It is a super-3 number, since 3×1172473 = 4835333934684669, which contains 333 as substring.

It is a plaindrome in base 8.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117241) 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, 222 + ... + 532.

It is an arithmetic number, because the mean of its divisors is an integer number (16380).

2117247 is an apocalyptic number.

117247 is a deficient number, since it is larger than the sum of its proper divisors (13793).

117247 is a wasteful number, since it uses less digits than its factorization.

117247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353.

The product of its digits is 392, while the sum is 22.

The square root of 117247 is about 342.4134927248. The cubic root of 117247 is about 48.9441262333.

Adding to 117247 its reverse (742711), we get a palindrome (859958).

The spelling of 117247 in words is "one hundred seventeen thousand, two hundred forty-seven", and thus it is an iban number.

Divisors: 1 13 29 311 377 4043 9019 117247