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2213808 = 243172713
BaseRepresentation
bin1000011100011110110000
311011110202220
420130132300
51031320213
6115241040
724550152
oct10343660
94143686
102213808
1112822a3
128a9180
135c685c
14418ad2
152dae23
hex21c7b0

2213808 has 40 divisors (see below), whose sum is σ = 6057648. Its totient is φ = 694272.

The previous prime is 2213789. The next prime is 2213833. The reversal of 2213808 is 8083122.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 541 + ... + 2172.

22213808 is an apocalyptic number.

It is an amenable number.

2213808 is an abundant number, since it is smaller than the sum of its proper divisors (3843840).

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

2213808 is a wasteful number, since it uses less digits than its factorization.

2213808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741 (or 2735 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 2213808 is about 1487.8870924906. The cubic root of 2213808 is about 130.3306768921.

The spelling of 2213808 in words is "two million, two hundred thirteen thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 16 17 24 34 48 51 68 102 136 204 272 408 816 2713 5426 8139 10852 16278 21704 32556 43408 46121 65112 92242 130224 138363 184484 276726 368968 553452 737936 1106904 2213808