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116168181 = 3113342679
BaseRepresentation
bin1101110110010…
…01010111110101
322002120221210020
412323021113311
5214214340211
615305515353
72610261513
oct673112765
9262527706
10116168181
115a634968
1232aa2b59
131b0b4a8c
14115dd4b3
15a2ea306
hex6ec95f5

116168181 has 8 divisors (see below), whose sum is σ = 156262080. Its totient is φ = 76759872.

The previous prime is 116168179. The next prime is 116168183. The reversal of 116168181 is 181861611.

It is an interprime number because it is at equal distance from previous prime (116168179) and next prime (116168183).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 116168181 - 21 = 116168179 is a prime.

It is a super-2 number, since 2×1161681812 = 26990092553697522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116168183) 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 7 ways as a sum of consecutive naturals, for example, 171001 + ... + 171678.

It is an arithmetic number, because the mean of its divisors is an integer number (19532760).

Almost surely, 2116168181 is an apocalyptic number.

It is an amenable number.

116168181 is a deficient number, since it is larger than the sum of its proper divisors (40093899).

116168181 is a wasteful number, since it uses less digits than its factorization.

116168181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342795.

The product of its digits is 2304, while the sum is 33.

The square root of 116168181 is about 10778.1343932983. The cubic root of 116168181 is about 487.9354772818.

The spelling of 116168181 in words is "one hundred sixteen million, one hundred sixty-eight thousand, one hundred eighty-one".

Divisors: 1 3 113 339 342679 1028037 38722727 116168181