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2689316 = 227213721
BaseRepresentation
bin1010010000100100100100
312001122001022
422100210210
51142024231
6133350312
731600400
oct12204444
95048038
102689316
111577583
12a98398
13732116
14500100
15381c7b
hex290924

2689316 has 18 divisors (see below), whose sum is σ = 5475078. Its totient is φ = 1152480.

The previous prime is 2689303. The next prime is 2689333. The reversal of 2689316 is 6139862.

It can be written as a sum of positive squares in only one way, i.e., 1960000 + 729316 = 1400^2 + 854^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6665 + ... + 7056.

It is an arithmetic number, because the mean of its divisors is an integer number (304171).

22689316 is an apocalyptic number.

It is an amenable number.

2689316 is an abundant number, since it is smaller than the sum of its proper divisors (2785762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2689316 is a wasteful number, since it uses less digits than its factorization.

2689316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13739 (or 13730 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 2689316 is about 1639.9134123483. The cubic root of 2689316 is about 139.0637528230.

Multiplying 2689316 by its sum of digits (35), we get a triangular number (94126060 = T13720).

The spelling of 2689316 in words is "two million, six hundred eighty-nine thousand, three hundred sixteen".

Divisors: 1 2 4 7 14 28 49 98 196 13721 27442 54884 96047 192094 384188 672329 1344658 2689316