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118980447 = 3193205493
BaseRepresentation
bin1110001011101…
…11111101011111
322021212211111020
413011313331133
5220424333242
615450055223
72643213525
oct705677537
9267784436
10118980447
1161185853
1233a1a513
131b85ab41
1411b32315
15a6a36ec
hex7177f5f

118980447 has 8 divisors (see below), whose sum is σ = 159463344. Its totient is φ = 78908928.

The previous prime is 118980443. The next prime is 118980457. The reversal of 118980447 is 744089811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 118980447 - 22 = 118980443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118980399 and 118980408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118980443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102168 + ... + 103325.

It is an arithmetic number, because the mean of its divisors is an integer number (19932918).

Almost surely, 2118980447 is an apocalyptic number.

118980447 is a deficient number, since it is larger than the sum of its proper divisors (40482897).

118980447 is a wasteful number, since it uses less digits than its factorization.

118980447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205689.

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 118980447 is about 10907.8158675328. The cubic root of 118980447 is about 491.8415321824.

The spelling of 118980447 in words is "one hundred eighteen million, nine hundred eighty thousand, four hundred forty-seven".

Divisors: 1 3 193 579 205493 616479 39660149 118980447