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211040120 = 23541128683
BaseRepresentation
bin11001001010000…
…11011101111000
3112201002221121202
430211003131320
5413011240440
632535153332
75141545214
oct1445033570
9481087552
10211040120
11a9143625
125a815848
1334951415
1420057944
15137da615
hexc943778

211040120 has 32 divisors (see below), whose sum is σ = 486425520. Its totient is φ = 82356480.

The previous prime is 211040113. The next prime is 211040129. The reversal of 211040120 is 21040112.

211040120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2110401202 = 89075864499228800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211040129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62702 + ... + 65981.

Almost surely, 2211040120 is an apocalyptic number.

211040120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211040120 is an abundant number, since it is smaller than the sum of its proper divisors (275385400).

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

211040120 is a wasteful number, since it uses less digits than its factorization.

211040120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128735 (or 128731 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 211040120 is about 14527.2199680462. The cubic root of 211040120 is about 595.3719116357.

Adding to 211040120 its reverse (21040112), we get a palindrome (232080232).

The spelling of 211040120 in words is "two hundred eleven million, forty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 41 82 164 205 328 410 820 1640 128683 257366 514732 643415 1029464 1286830 2573660 5147320 5276003 10552006 21104012 26380015 42208024 52760030 105520060 211040120