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2813053221 = 321160147279
BaseRepresentation
bin1010011110101011…
…1100100100100101
321021001020220120100
42213222330210211
521230120200341
61143045254313
7126465362226
oct24752744445
97231226510
102813053221
111213993580
12666104399
1335aa4a744
141c986124d
15116e673b6
hexa7abc925

2813053221 has 24 divisors (see below), whose sum is σ = 4440159360. Its totient is φ = 1702008000.

The previous prime is 2813053213. The next prime is 2813053231. The reversal of 2813053221 is 1223503182.

2813053221 is a `hidden beast` number, since 2 + 81 + 30 + 532 + 21 = 666.

It is not a de Polignac number, because 2813053221 - 23 = 2813053213 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2813053211) 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 23 ways as a sum of consecutive naturals, for example, 35860 + ... + 83138.

It is an arithmetic number, because the mean of its divisors is an integer number (185006640).

Almost surely, 22813053221 is an apocalyptic number.

It is an amenable number.

2813053221 is a deficient number, since it is larger than the sum of its proper divisors (1627106139).

2813053221 is a wasteful number, since it uses less digits than its factorization.

2813053221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47897 (or 47894 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2813053221 is about 53038.2241501353. The cubic root of 2813053221 is about 1411.6465885238.

The spelling of 2813053221 in words is "two billion, eight hundred thirteen million, fifty-three thousand, two hundred twenty-one".

Divisors: 1 3 9 11 33 99 601 1803 5409 6611 19833 47279 59499 141837 425511 520069 1560207 4680621 28414679 85244037 255732111 312561469 937684407 2813053221