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493992053 = 2232215211
BaseRepresentation
bin11101011100011…
…011100001110101
31021102112101200222
4131130123201311
52002430221203
6121003544125
715145602032
oct3534334165
91242471628
10493992053
112339335a5
1211952b045
137b4605b9
1449870389
152d57d038
hex1d71b875

493992053 has 4 divisors (see below), whose sum is σ = 496207488. Its totient is φ = 491776620.

The previous prime is 493992047. The next prime is 493992131. The reversal of 493992053 is 350299394.

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, and also an emirpimes, since its reverse is a distinct semiprime: 350299394 = 2175149697.

It is a cyclic number.

It is not a de Polignac number, because 493992053 - 26 = 493991989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 493991995 and 493992013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493992353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1107383 + ... + 1107828.

It is an arithmetic number, because the mean of its divisors is an integer number (124051872).

Almost surely, 2493992053 is an apocalyptic number.

It is an amenable number.

493992053 is a deficient number, since it is larger than the sum of its proper divisors (2215435).

493992053 is a wasteful number, since it uses less digits than its factorization.

493992053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2215434.

The product of its (nonzero) digits is 262440, while the sum is 44.

The square root of 493992053 is about 22225.9319939570. The cubic root of 493992053 is about 790.5087002987.

The spelling of 493992053 in words is "four hundred ninety-three million, nine hundred ninety-two thousand, fifty-three".

Divisors: 1 223 2215211 493992053