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BaseRepresentation
bin100110100101
310101110
4212211
534334
615233
710125
oct4645
93343
102469
111945
121519
13117c
14c85
15ae9
hex9a5

2469 has 4 divisors (see below), whose sum is σ = 3296. Its totient is φ = 1644.

The previous prime is 2467. The next prime is 2473. The reversal of 2469 is 9642.

2469 = 22 + 32 + ... + 192.

2469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2469 - 21 = 2467 is a prime.

It is a super-2 number, since 2×24692 = 12191922, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 10 and base 13.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409 + ... + 414.

It is an arithmetic number, because the mean of its divisors is an integer number (824).

22469 is an apocalyptic number.

It is an amenable number.

2469 is a deficient number, since it is larger than the sum of its proper divisors (827).

2469 is an equidigital number, since it uses as much as digits as its factorization.

2469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826.

The product of its digits is 432, while the sum is 21.

The square root of 2469 is about 49.6890329952. The cubic root of 2469 is about 13.5157566366.

The spelling of 2469 in words is "two thousand, four hundred sixty-nine".

Divisors: 1 3 823 2469