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118380973 = 190162273
BaseRepresentation
bin1110000111001…
…01100110101101
322020202101011111
413003211212231
5220301142343
615425152021
72635136014
oct703454655
9266671144
10118380973
1160906417
123378b611
131b6ab019
1411a17a7b
15a5d5c9d
hex70e59ad

118380973 has 4 divisors (see below), whose sum is σ = 118445148. Its totient is φ = 118316800.

The previous prime is 118380953. The next prime is 118381037. The reversal of 118380973 is 379083811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 379083811 = 478065613.

It can be written as a sum of positive squares in 2 ways, for example, as 23941449 + 94439524 = 4893^2 + 9718^2 .

It is a cyclic number.

It is not a de Polignac number, because 118380973 - 29 = 118380461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118380923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29236 + ... + 33037.

It is an arithmetic number, because the mean of its divisors is an integer number (29611287).

Almost surely, 2118380973 is an apocalyptic number.

It is an amenable number.

118380973 is a deficient number, since it is larger than the sum of its proper divisors (64175).

118380973 is an equidigital number, since it uses as much as digits as its factorization.

118380973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64174.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 118380973 is about 10880.3020638216. The cubic root of 118380973 is about 491.0141055039.

The spelling of 118380973 in words is "one hundred eighteen million, three hundred eighty thousand, nine hundred seventy-three".

Divisors: 1 1901 62273 118380973