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2819838053 = 12132324681
BaseRepresentation
bin1010100000010011…
…0101000001100101
321021112000121121102
42220010311001211
521233334304203
61143450525445
7126610141124
oct25004650145
97245017542
102819838053
1112177a807a
12668436885
1335c284a36
141ca709abb
15117857888
hexa8135065

2819838053 has 4 divisors (see below), whose sum is σ = 2822163948. Its totient is φ = 2817512160.

The previous prime is 2819837989. The next prime is 2819838071. The reversal of 2819838053 is 3508389182.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3508389182 = 21754194591.

It can be written as a sum of positive squares in 2 ways, for example, as 227195329 + 2592642724 = 15073^2 + 50918^2 .

It is a cyclic number.

It is not a de Polignac number, because 2819838053 - 26 = 2819837989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2819837989 and 2819838007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2819838083) 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, 1161128 + ... + 1163553.

It is an arithmetic number, because the mean of its divisors is an integer number (705540987).

Almost surely, 22819838053 is an apocalyptic number.

It is an amenable number.

2819838053 is a deficient number, since it is larger than the sum of its proper divisors (2325895).

2819838053 is a wasteful number, since it uses less digits than its factorization.

2819838053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2325894.

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 2819838053 is about 53102.1473482947. The cubic root of 2819838053 is about 1412.7805989439.

The spelling of 2819838053 in words is "two billion, eight hundred nineteen million, eight hundred thirty-eight thousand, fifty-three".

Divisors: 1 1213 2324681 2819838053