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208101120 = 283554193
BaseRepresentation
bin11000110011101…
…01111100000000
3112111120122001220
430121311330000
5411233213440
632352155040
75104554543
oct1431657400
9474518056
10208101120
11a75164a7
1259838a80
1334162776
141d8d085a
15134098d0
hexc675f00

208101120 has 72 divisors (see below), whose sum is σ = 664635216. Its totient is φ = 55492608.

The previous prime is 208101119. The next prime is 208101137. The reversal of 208101120 is 21101802.

It is a super-2 number, since 2×2081011202 = 86612152290508800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 208101120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23257 + ... + 30936.

Almost surely, 2208101120 is an apocalyptic number.

208101120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208101120 is an abundant number, since it is smaller than the sum of its proper divisors (456534096).

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

208101120 is an equidigital number, since it uses as much as digits as its factorization.

208101120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54217 (or 54203 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 208101120 is about 14425.7103811216. The cubic root of 208101120 is about 592.5952133835.

Adding to 208101120 its reverse (21101802), we get a palindrome (229202922).

The spelling of 208101120 in words is "two hundred eight million, one hundred one thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 640 768 960 1280 1920 3840 54193 108386 162579 216772 270965 325158 433544 541930 650316 812895 867088 1083860 1300632 1625790 1734176 2167720 2601264 3251580 3468352 4335440 5202528 6503160 6936704 8670880 10405056 13006320 13873408 17341760 20810112 26012640 34683520 41620224 52025280 69367040 104050560 208101120