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211004212 = 22457115429
BaseRepresentation
bin11001001001110…
…10101100110100
3112201001010100211
430210322230310
5413004113322
632534315204
75141335426
oct1444725464
9481033324
10211004212
11a9119651
125a7b8b04
133493ac83
1420048816
15137ceb77
hexc93ab34

211004212 has 12 divisors (see below), whose sum is σ = 370068580. Its totient is φ = 105270336.

The previous prime is 211004207. The next prime is 211004263. The reversal of 211004212 is 212400112.

It is a happy number.

211004212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 115863696 + 95140516 = 10764^2 + 9754^2 .

It is a junction number, because it is equal to n+sod(n) for n = 211004192 and 211004201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55887 + ... + 59542.

Almost surely, 2211004212 is an apocalyptic number.

It is an amenable number.

211004212 is a deficient number, since it is larger than the sum of its proper divisors (159064368).

211004212 is a wasteful number, since it uses less digits than its factorization.

211004212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115890 (or 115888 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 211004212 is about 14525.9840286295. The cubic root of 211004212 is about 595.3381426581.

Adding to 211004212 its reverse (212400112), we get a palindrome (423404324).

The spelling of 211004212 in words is "two hundred eleven million, four thousand, two hundred twelve".

Divisors: 1 2 4 457 914 1828 115429 230858 461716 52751053 105502106 211004212