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2689323 = 37139851
BaseRepresentation
bin1010010000100100101011
312001122001120
422100210223
51142024243
6133350323
731600410
oct12204453
95048046
102689323
11157758a
12a983a3
13732120
14500107
15381c83
hex29092b

2689323 has 16 divisors (see below), whose sum is σ = 4413696. Its totient is φ = 1418400.

The previous prime is 2689303. The next prime is 2689333. The reversal of 2689323 is 3239862.

It is not a de Polignac number, because 2689323 - 26 = 2689259 is a prime.

It is a d-powerful number, because it can be written as 211 + 63 + 87 + 9 + 38 + 219 + 310 .

2689323 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2689303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4653 + ... + 5198.

It is an arithmetic number, because the mean of its divisors is an integer number (275856).

22689323 is an apocalyptic number.

2689323 is a deficient number, since it is larger than the sum of its proper divisors (1724373).

2689323 is a wasteful number, since it uses less digits than its factorization.

2689323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9874.

The product of its digits is 15552, while the sum is 33.

The square root of 2689323 is about 1639.9155466060. The cubic root of 2689323 is about 139.0638734788.

It can be divided in two parts, 268 and 9323, that added together give a triangular number (9591 = T138).

The spelling of 2689323 in words is "two million, six hundred eighty-nine thousand, three hundred twenty-three".

Divisors: 1 3 7 13 21 39 91 273 9851 29553 68957 128063 206871 384189 896441 2689323