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116132881 = 307378283
BaseRepresentation
bin1101110110000…
…00110000010001
322002112011100211
412323000300101
5214212223011
615305044121
72610053554
oct673006021
9262464324
10116132881
115a610397
1232a86641
131b0a19a7
14115d069b
15a2deb21
hex6ec0c11

116132881 has 4 divisors (see below), whose sum is σ = 116511472. Its totient is φ = 115754292.

The previous prime is 116132857. The next prime is 116132897. The reversal of 116132881 is 188231611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 188231611 = 201193601.

It is a cyclic number.

It is not a de Polignac number, because 116132881 - 29 = 116132369 is a prime.

It is a super-2 number, since 2×1161328812 = 26973692098720322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116130881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188835 + ... + 189448.

It is an arithmetic number, because the mean of its divisors is an integer number (29127868).

Almost surely, 2116132881 is an apocalyptic number.

It is an amenable number.

116132881 is a deficient number, since it is larger than the sum of its proper divisors (378591).

116132881 is an equidigital number, since it uses as much as digits as its factorization.

116132881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378590.

The product of its digits is 2304, while the sum is 31.

The square root of 116132881 is about 10776.4966941952. The cubic root of 116132881 is about 487.8860493256.

The spelling of 116132881 in words is "one hundred sixteen million, one hundred thirty-two thousand, eight hundred eighty-one".

Divisors: 1 307 378283 116132881