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2788339243 = 19236380639
BaseRepresentation
bin1010011000110010…
…1010111000101011
321012022202022100211
42212030222320223
521202303323433
61140403441551
7126045330634
oct24614527053
97168668324
102788339243
111200a435a8
126599862b7
133558a67a1
141c646a88b
15114bd48cd
hexa632ae2b

2788339243 has 8 divisors (see below), whose sum is σ = 3062707200. Its totient is φ = 2526732648.

The previous prime is 2788339199. The next prime is 2788339261. The reversal of 2788339243 is 3429338872.

2788339243 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 cyclic number.

It is not a de Polignac number, because 2788339243 - 221 = 2786242091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2788339283) 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, 3189883 + ... + 3190756.

It is an arithmetic number, because the mean of its divisors is an integer number (382838400).

Almost surely, 22788339243 is an apocalyptic number.

2788339243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2788339243 is a deficient number, since it is larger than the sum of its proper divisors (274367957).

2788339243 is a wasteful number, since it uses less digits than its factorization.

2788339243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6380681.

The product of its digits is 1741824, while the sum is 49.

The square root of 2788339243 is about 52804.7274682864. The cubic root of 2788339243 is about 1407.5004326184.

The spelling of 2788339243 in words is "two billion, seven hundred eighty-eight million, three hundred thirty-nine thousand, two hundred forty-three".

Divisors: 1 19 23 437 6380639 121232141 146754697 2788339243