Base | Representation |
---|---|
bin | 11001001101000… |
… | …00010011010100 |
3 | 112201211021020011 |
4 | 30212200103110 |
5 | 413110422442 |
6 | 32551250004 |
7 | 5145020632 |
oct | 1446402324 |
9 | 481737204 |
10 | 211420372 |
11 | a9383289 |
12 | 5a979904 |
13 | 34a55517 |
14 | 20116352 |
15 | 13863117 |
hex | c9a04d4 |
211420372 has 36 divisors (see below), whose sum is σ = 403165056. Its totient is φ = 96895440.
The previous prime is 211420369. The next prime is 211420373. The reversal of 211420372 is 273024112.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (211420373) by changing a digit.
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 11 ways as a sum of consecutive naturals, for example, 42403 + ... + 47125.
Almost surely, 2211420372 is an apocalyptic number.
It is an amenable number.
211420372 is a deficient number, since it is larger than the sum of its proper divisors (191744684).
211420372 is a wasteful number, since it uses less digits than its factorization.
211420372 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4796 (or 4775 counting only the distinct ones).
The product of its (nonzero) digits is 672, while the sum is 22.
The square root of 211420372 is about 14540.3016474900. The cubic root of 211420372 is about 595.7292773749.
Adding to 211420372 its reverse (273024112), we get a palindrome (484444484).
The spelling of 211420372 in words is "two hundred eleven million, four hundred twenty thousand, three hundred seventy-two".
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