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2809053238 = 210713126417
BaseRepresentation
bin1010011101101110…
…1100000000110110
321020202201200121211
42213123230000312
521223104200423
61142423432034
7126416362405
oct24733540066
97222650554
102809053238
111211701302
126648b561a
13359c79ba4
141c90dd63c
1511692710d
hexa76ec036

2809053238 has 8 divisors (see below), whose sum is σ = 4252959432. Its totient is φ = 1391400096.

The previous prime is 2809053229. The next prime is 2809053241. The reversal of 2809053238 is 8323509082.

2809053238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2809053238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6562995 + ... + 6563422.

It is an arithmetic number, because the mean of its divisors is an integer number (531619929).

Almost surely, 22809053238 is an apocalyptic number.

2809053238 is a deficient number, since it is larger than the sum of its proper divisors (1443906194).

2809053238 is a wasteful number, since it uses less digits than its factorization.

2809053238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13126526.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 2809053238 is about 53000.5022429033. The cubic root of 2809053238 is about 1410.9771805437.

The spelling of 2809053238 in words is "two billion, eight hundred nine million, fifty-three thousand, two hundred thirty-eight".

Divisors: 1 2 107 214 13126417 26252834 1404526619 2809053238