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118668289 = 734633511
BaseRepresentation
bin1110001001010…
…11110000000001
322021021222021211
413010223300001
5220334341124
615435250121
72640443455
oct704536001
9267258254
10118668289
1160a92273
12338a9941
131b77ba2c
1411a90665
15a640e94
hex712bc01

118668289 has 8 divisors (see below), whose sum is σ = 120588032. Its totient is φ = 116756640.

The previous prime is 118668283. The next prime is 118668307. The reversal of 118668289 is 982866811.

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 118668289 - 215 = 118635521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118668283) 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 7 ways as a sum of consecutive naturals, for example, 32044 + ... + 35554.

It is an arithmetic number, because the mean of its divisors is an integer number (15073504).

Almost surely, 2118668289 is an apocalyptic number.

It is an amenable number.

118668289 is a deficient number, since it is larger than the sum of its proper divisors (1919743).

118668289 is an equidigital number, since it uses as much as digits as its factorization.

118668289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4047.

The product of its digits is 331776, while the sum is 49.

The square root of 118668289 is about 10893.4975558817. The cubic root of 118668289 is about 491.4110224126.

The spelling of 118668289 in words is "one hundred eighteen million, six hundred sixty-eight thousand, two hundred eighty-nine".

Divisors: 1 73 463 3511 33799 256303 1625593 118668289