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118948889 = 1019116731
BaseRepresentation
bin1110001011100…
…00010000011001
322021211020012102
413011300100121
5220422331024
615445253145
72643022523
oct705602031
9267736172
10118948889
1161164074
1233a041b5
131b849677
1411b24a13
15a6991ae
hex7170419

118948889 has 4 divisors (see below), whose sum is σ = 119066640. Its totient is φ = 118831140.

The previous prime is 118948883. The next prime is 118948903. The reversal of 118948889 is 988849811.

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.

It is a cyclic number.

It is not a de Polignac number, because 118948889 - 216 = 118883353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118948883) 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, 57347 + ... + 59384.

It is an arithmetic number, because the mean of its divisors is an integer number (29766660).

Almost surely, 2118948889 is an apocalyptic number.

It is an amenable number.

118948889 is a deficient number, since it is larger than the sum of its proper divisors (117751).

118948889 is a wasteful number, since it uses less digits than its factorization.

118948889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117750.

The product of its digits is 1327104, while the sum is 56.

The square root of 118948889 is about 10906.3691941911. The cubic root of 118948889 is about 491.7980435029.

The spelling of 118948889 in words is "one hundred eighteen million, nine hundred forty-eight thousand, eight hundred eighty-nine".

Divisors: 1 1019 116731 118948889