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2149308 = 223372843
BaseRepresentation
bin1000001100101110111100
311001012022000
420030232330
51022234213
6114022300
724161130
oct10145674
94035260
102149308
111238897
12877990
135a33a5
143dd3c0
152c6c73
hex20cbbc

2149308 has 48 divisors (see below), whose sum is σ = 6370560. Its totient is φ = 613872.

The previous prime is 2149289. The next prime is 2149331. The reversal of 2149308 is 8039412.

2149308 is nontrivially palindromic in base 13.

2149308 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 666 + ... + 2177.

It is an arithmetic number, because the mean of its divisors is an integer number (132720).

22149308 is an apocalyptic number.

2149308 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2149308 is an abundant number, since it is smaller than the sum of its proper divisors (4221252).

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

2149308 is a wasteful number, since it uses less digits than its factorization.

2149308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2863 (or 2855 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 2149308 is about 1466.0518408296. The cubic root of 2149308 is about 129.0524394697.

The spelling of 2149308 in words is "two million, one hundred forty-nine thousand, three hundred eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 84 108 126 189 252 378 756 2843 5686 8529 11372 17058 19901 25587 34116 39802 51174 59703 76761 79604 102348 119406 153522 179109 238812 307044 358218 537327 716436 1074654 2149308