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211120120 = 2355479649
BaseRepresentation
bin11001001010101…
…10111111111000
3112201021000100201
430211112333320
5413021320440
632541011544
75142330361
oct1445267770
9481230321
10211120120
11a9198742
125a853bb4
133497b963
1420078b68
151380419a
hexc956ff8

211120120 has 32 divisors (see below), whose sum is σ = 475938000. Its totient is φ = 84284928.

The previous prime is 211120109. The next prime is 211120139. The reversal of 211120120 is 21021112.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 211120097 and 211120106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17056 + ... + 26704.

Almost surely, 2211120120 is an apocalyptic number.

211120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211120120 is an abundant number, since it is smaller than the sum of its proper divisors (264817880).

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

211120120 is a wasteful number, since it uses less digits than its factorization.

211120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10207 (or 10203 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 211120120 is about 14529.9731589566. The cubic root of 211120120 is about 595.4471323027.

Adding to 211120120 its reverse (21021112), we get a palindrome (232141232).

The spelling of 211120120 in words is "two hundred eleven million, one hundred twenty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 547 1094 2188 2735 4376 5470 9649 10940 19298 21880 38596 48245 77192 96490 192980 385960 5278003 10556006 21112012 26390015 42224024 52780030 105560060 211120120