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2769 = 31371
BaseRepresentation
bin101011010001
310210120
4223101
542034
620453
711034
oct5321
93716
102769
112098
121729
131350
14101b
15c49

2769 has 8 divisors (see below), whose sum is σ = 4032. Its totient is φ = 1680.

The previous prime is 2767. The next prime is 2777. The reversal of 2769 is 9672.

2769 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 not a de Polignac number, because 2769 - 21 = 2767 is a prime.

It is a super-2 number, since 2×27692 = 15334722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (2767) 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, 4 + ... + 74.

It is an arithmetic number, because the mean of its divisors is an integer number (504).

22769 is an apocalyptic number.

It is an amenable number.

2769 is a deficient number, since it is larger than the sum of its proper divisors (1263).

2769 is a wasteful number, since it uses less digits than its factorization.

2769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87.

The product of its digits is 756, while the sum is 24.

The square root of 2769 is about 52.6212884677. The cubic root of 2769 is about 14.0423885353.

Subtracting 2769 from its reverse (9672), we obtain a triangular number (6903 = T117).

The spelling of 2769 in words is "two thousand, seven hundred sixty-nine".

Divisors: 1 3 13 39 71 213 923 2769