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210031212223 = 7223134549143
BaseRepresentation
bin1100001110011011010…
…1011111011010111111
3202002010102210001202001
43003212311133122333
511420120442242343
6240253105443131
721113524563460
oct3034665373277
9662112701661
10210031212223
118108a164438
12348570404a7
1316a62617301
14a24644ad67
1556e3e4a44d
hex30e6d5f6bf

210031212223 has 8 divisors (see below), whose sum is σ = 241112066048. Its totient is φ = 179219457144.

The previous prime is 210031212211. The next prime is 210031212227. The reversal of 210031212223 is 322212130012.

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

It is not a de Polignac number, because 210031212223 - 25 = 210031212191 is a prime.

It is a super-3 number, since 3×2100312122233 (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 210031212223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210031212227) 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, 67273011 + ... + 67276132.

It is an arithmetic number, because the mean of its divisors is an integer number (30139008256).

Almost surely, 2210031212223 is an apocalyptic number.

210031212223 is a deficient number, since it is larger than the sum of its proper divisors (31080853825).

210031212223 is a wasteful number, since it uses less digits than its factorization.

210031212223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134549373.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 210031212223 its reverse (322212130012), we get a palindrome (532243342235).

The spelling of 210031212223 in words is "two hundred ten billion, thirty-one million, two hundred twelve thousand, two hundred twenty-three".

Divisors: 1 7 223 1561 134549143 941844001 30004458889 210031212223