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211252323 = 397725953
BaseRepresentation
bin11001001011101…
…11010001100011
3112201111201201010
430211313101203
5413040033243
632543512003
75143420662
oct1445672143
9481451633
10211252323
11a9278aa7
125a8b8603
13349c6b99
14200b0dd9
151382d433
hexc977463

211252323 has 8 divisors (see below), whose sum is σ = 284573968. Its totient is φ = 139382784.

The previous prime is 211252289. The next prime is 211252337. The reversal of 211252323 is 323252112.

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

It is not a de Polignac number, because 211252323 - 29 = 211251811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211252323.

It is not an unprimeable number, because it can be changed into a prime (211252343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362686 + ... + 363267.

It is an arithmetic number, because the mean of its divisors is an integer number (35571746).

Almost surely, 2211252323 is an apocalyptic number.

211252323 is a deficient number, since it is larger than the sum of its proper divisors (73321645).

211252323 is an equidigital number, since it uses as much as digits as its factorization.

211252323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726053.

The product of its digits is 720, while the sum is 21.

The square root of 211252323 is about 14534.5217671584. The cubic root of 211252323 is about 595.5713956392.

It can be divided in two parts, 211252 and 323, that added together give a triangular number (211575 = T650).

The spelling of 211252323 in words is "two hundred eleven million, two hundred fifty-two thousand, three hundred twenty-three".

Divisors: 1 3 97 291 725953 2177859 70417441 211252323