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210223122231 = 370074374077
BaseRepresentation
bin1100001111001001000…
…1100100011100110111
3202002121210220002210010
43003302101210130313
511421014104402411
6240324123031303
721121345025043
oct3036221443467
9662553802703
10210223122231
1181178521251
12348ab36b533
1316a932cb225
14a263b25023
155705c077a6
hex30f2464737

210223122231 has 4 divisors (see below), whose sum is σ = 280297496312. Its totient is φ = 140148748152.

The previous prime is 210223122211. The next prime is 210223122293. The reversal of 210223122231 is 132221322012.

210223122231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 210223122231 - 27 = 210223122103 is a prime.

It is a super-2 number, since 2×2102231222312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210223122198 and 210223122207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210223122211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35037187036 + ... + 35037187041.

It is an arithmetic number, because the mean of its divisors is an integer number (70074374078).

Almost surely, 2210223122231 is an apocalyptic number.

210223122231 is a deficient number, since it is larger than the sum of its proper divisors (70074374081).

210223122231 is an equidigital number, since it uses as much as digits as its factorization.

210223122231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70074374080.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 210223122231 its reverse (132221322012), we get a palindrome (342444444243).

The spelling of 210223122231 in words is "two hundred ten billion, two hundred twenty-three million, one hundred twenty-two thousand, two hundred thirty-one".

Divisors: 1 3 70074374077 210223122231