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112658881 = 1729228517
BaseRepresentation
bin1101011011100…
…00100111000001
321211222122221011
412231300213001
5212320041011
615102400521
72535404356
oct655604701
9254878834
10112658881
1158658315
1231890141
131a45667a
1410d6862d
159d55621
hex6b709c1

112658881 has 8 divisors (see below), whose sum is σ = 123399720. Its totient is φ = 102375168.

The previous prime is 112658879. The next prime is 112658911. The reversal of 112658881 is 188856211.

It can be written as a sum of positive squares in 4 ways, for example, as 18879025 + 93779856 = 4345^2 + 9684^2 .

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 112658881 - 21 = 112658879 is a prime.

It is a super-2 number, since 2×1126588812 = 25384046936344322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112658831) 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, 113766 + ... + 114751.

It is an arithmetic number, because the mean of its divisors is an integer number (15424965).

Almost surely, 2112658881 is an apocalyptic number.

It is an amenable number.

112658881 is a deficient number, since it is larger than the sum of its proper divisors (10740839).

112658881 is a wasteful number, since it uses less digits than its factorization.

112658881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228563.

The product of its digits is 30720, while the sum is 40.

The square root of 112658881 is about 10614.0887974428. The cubic root of 112658881 is about 482.9718415801.

The spelling of 112658881 in words is "one hundred twelve million, six hundred fifty-eight thousand, eight hundred eighty-one".

Divisors: 1 17 29 493 228517 3884789 6626993 112658881