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2768117065 = 57211298437
BaseRepresentation
bin1010010011111110…
…0001110101001001
321010220200220202021
42210333201311021
521132114221230
61134402204441
7125411415100
oct24477416511
97126626667
102768117065
1111a059135a
12653053721
133516461bc
141c38c5037
1511303cc7a
hexa4fe1d49

2768117065 has 12 divisors (see below), whose sum is σ = 3864065796. Its totient is φ = 1898137248.

The previous prime is 2768117057. The next prime is 2768117113. The reversal of 2768117065 is 5607118672.

It can be written as a sum of positive squares in 2 ways, for example, as 2183879824 + 584237241 = 46732^2 + 24171^2 .

It is not a de Polignac number, because 2768117065 - 23 = 2768117057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5648974 + ... + 5649463.

It is an arithmetic number, because the mean of its divisors is an integer number (322005483).

Almost surely, 22768117065 is an apocalyptic number.

It is an amenable number.

2768117065 is a deficient number, since it is larger than the sum of its proper divisors (1095948731).

2768117065 is a wasteful number, since it uses less digits than its factorization.

2768117065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11298456 (or 11298449 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 2768117065 is about 52612.8982759931. The cubic root of 2768117065 is about 1404.0895838232.

The spelling of 2768117065 in words is "two billion, seven hundred sixty-eight million, one hundred seventeen thousand, sixty-five".

Divisors: 1 5 7 35 49 245 11298437 56492185 79089059 395445295 553623413 2768117065