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212001310 = 25296191181
BaseRepresentation
bin11001010001011…
…10001000011110
3112202220210010101
430220232020132
5413233020220
633011531314
75152660423
oct1450561036
9482823111
10212001310
11a973a7a4
125abb9b3a
1334bc9a81
1420227d4a
151392a30a
hexca2e21e

212001310 has 32 divisors (see below), whose sum is σ = 395733600. Its totient is φ = 81674880.

The previous prime is 212001289. The next prime is 212001311. The reversal of 212001310 is 13100212.

212001310 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2120013102 = 89889110883432200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212001311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178920 + ... + 180100.

It is an arithmetic number, because the mean of its divisors is an integer number (12366675).

Almost surely, 2212001310 is an apocalyptic number.

212001310 is a deficient number, since it is larger than the sum of its proper divisors (183732290).

212001310 is a wasteful number, since it uses less digits than its factorization.

212001310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 212001310 is about 14560.2647640762. The cubic root of 212001310 is about 596.2744239446.

Adding to 212001310 its reverse (13100212), we get a palindrome (225101522).

The spelling of 212001310 in words is "two hundred twelve million, one thousand, three hundred ten".

Divisors: 1 2 5 10 29 58 145 290 619 1181 1238 2362 3095 5905 6190 11810 17951 34249 35902 68498 89755 171245 179510 342490 731039 1462078 3655195 7310390 21200131 42400262 106000655 212001310