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2684997 = 3271723109
BaseRepresentation
bin1010001111100001000101
312001102010100
422033201011
51141404442
6133314313
731551660
oct12174105
95042110
102684997
111574307
12a95999
13730173
144dc6d7
1538084c
hex28f845

2684997 has 48 divisors (see below), whose sum is σ = 4942080. Its totient is φ = 1368576.

The previous prime is 2684989. The next prime is 2684999. The reversal of 2684997 is 7994862.

It is a happy number.

It is not a de Polignac number, because 2684997 - 23 = 2684989 is a prime.

It is a d-powerful number, because it can be written as 219 + 66 + 87 + 4 + 9 + 92 + 75 .

2684997 is a Rhonda number in base 6.

Its product of digits (217728) is a multiple of the sum of its prime factors (162).

2684997 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2684999) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24579 + ... + 24687.

It is an arithmetic number, because the mean of its divisors is an integer number (102960).

22684997 is an apocalyptic number.

It is an amenable number.

2684997 is a deficient number, since it is larger than the sum of its proper divisors (2257083).

2684997 is a wasteful number, since it uses less digits than its factorization.

2684997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 159 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 2684997 is about 1638.5960453998. The cubic root of 2684997 is about 138.9892681879.

The spelling of 2684997 in words is "two million, six hundred eighty-four thousand, nine hundred ninety-seven".

Divisors: 1 3 7 9 17 21 23 51 63 69 109 119 153 161 207 327 357 391 483 763 981 1071 1173 1449 1853 2289 2507 2737 3519 5559 6867 7521 8211 12971 16677 17549 22563 24633 38913 42619 52647 116739 127857 157941 298333 383571 894999 2684997