Search a number
-
+
212331190 = 2517273471
BaseRepresentation
bin11001010011111…
…10101010110110
3112210112112122011
430221332222312
5413324044230
633022554434
75155533241
oct1451765266
9483475564
10212331190
11a9945625
125b138a1a
1334cb3c76
14202b2258
1513992e2a
hexca7eab6

212331190 has 24 divisors (see below), whose sum is σ = 406006272. Its totient is φ = 79935360.

The previous prime is 212331167. The next prime is 212331211. The reversal of 212331190 is 91133212.

It is a super-2 number, since 2×2123311902 = 90169068493632200, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 33846 + ... + 39625.

It is an arithmetic number, because the mean of its divisors is an integer number (16916928).

Almost surely, 2212331190 is an apocalyptic number.

212331190 is a deficient number, since it is larger than the sum of its proper divisors (193675082).

212331190 is a wasteful number, since it uses less digits than its factorization.

212331190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73512 (or 73495 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 212331190 is about 14571.5884515038. The cubic root of 212331190 is about 596.5835369276.

It can be divided in two parts, 212331 and 190, that added together give a square (212521 = 4612).

The spelling of 212331190 in words is "two hundred twelve million, three hundred thirty-one thousand, one hundred ninety".

Divisors: 1 2 5 10 17 34 85 170 289 578 1445 2890 73471 146942 367355 734710 1249007 2498014 6245035 12490070 21233119 42466238 106165595 212331190