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116178101 = 138936777
BaseRepresentation
bin1101110110010…
…11110010110101
322002121110101122
412323023302311
5214220144401
615310033325
72610332444
oct673136265
9262543348
10116178101
115a641366
1232aa8845
131b0b9450
1411602d5b
15a2ed21b
hex6ecbcb5

116178101 has 4 divisors (see below), whose sum is σ = 125114892. Its totient is φ = 107241312.

The previous prime is 116178061. The next prime is 116178107. The reversal of 116178101 is 101871611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101871611 = 313286181.

It can be written as a sum of positive squares in 2 ways, for example, as 60078001 + 56100100 = 7751^2 + 7490^2 .

It is a cyclic number.

It is not a de Polignac number, because 116178101 - 218 = 115915957 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 (116178107) 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, 4468376 + ... + 4468401.

It is an arithmetic number, because the mean of its divisors is an integer number (31278723).

Almost surely, 2116178101 is an apocalyptic number.

It is an amenable number.

116178101 is a deficient number, since it is larger than the sum of its proper divisors (8936791).

116178101 is an equidigital number, since it uses as much as digits as its factorization.

116178101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8936790.

The product of its (nonzero) digits is 336, while the sum is 26.

The square root of 116178101 is about 10778.5945744332. The cubic root of 116178101 is about 487.9493657153.

The spelling of 116178101 in words is "one hundred sixteen million, one hundred seventy-eight thousand, one hundred one".

Divisors: 1 13 8936777 116178101