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211055234 = 2138117509
BaseRepresentation
bin11001001010001…
…11001010000010
3112201010201100112
430211013022002
5413012231414
632535351322
75141640245
oct1445071202
9481121315
10211055234
11a9153a15
125a822542
1334958270
142005d25c
15137ded3e
hexc947282

211055234 has 8 divisors (see below), whose sum is σ = 340935420. Its totient is φ = 97410096.

The previous prime is 211055233. The next prime is 211055269. The reversal of 211055234 is 432550112.

It can be written as a sum of positive squares in 2 ways, for example, as 205779025 + 5276209 = 14345^2 + 2297^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (211055233) 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 3 ways as a sum of consecutive naturals, for example, 4058729 + ... + 4058780.

Almost surely, 2211055234 is an apocalyptic number.

211055234 is a deficient number, since it is larger than the sum of its proper divisors (129880186).

211055234 is a wasteful number, since it uses less digits than its factorization.

211055234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8117524.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 211055234 is about 14527.7401546146. The cubic root of 211055234 is about 595.3861241564.

The spelling of 211055234 in words is "two hundred eleven million, fifty-five thousand, two hundred thirty-four".

Divisors: 1 2 13 26 8117509 16235018 105527617 211055234