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119781493 = 1323400607
BaseRepresentation
bin1110010001110…
…11100001110101
322100101112022121
413020323201311
5221131001433
615515155541
72653061116
oct710734165
9270345277
10119781493
1161682677
1234145bb1
131ba7b630
1411ca020d
15a7b0c2d
hex723b875

119781493 has 8 divisors (see below), whose sum is σ = 134604288. Its totient is φ = 105759984.

The previous prime is 119781449. The next prime is 119781523. The reversal of 119781493 is 394187911.

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 119781493 - 213 = 119773301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (119781413) 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, 200005 + ... + 200602.

It is an arithmetic number, because the mean of its divisors is an integer number (16825536).

Almost surely, 2119781493 is an apocalyptic number.

119781493 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

119781493 is a deficient number, since it is larger than the sum of its proper divisors (14822795).

119781493 is a wasteful number, since it uses less digits than its factorization.

119781493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400643.

The product of its digits is 54432, while the sum is 43.

The square root of 119781493 is about 10944.4731714231. The cubic root of 119781493 is about 492.9428526347.

The spelling of 119781493 in words is "one hundred nineteen million, seven hundred eighty-one thousand, four hundred ninety-three".

Divisors: 1 13 23 299 400607 5207891 9213961 119781493