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212140542223 = 1627728317903
BaseRepresentation
bin1100010110010010001…
…1111100100100001111
3202021120102212010112101
43011210203330210033
511433430434322343
6241242300015531
721220016566561
oct3054443744417
9667512763471
10212140542223
1181a71895275
12351455315a7
131700a620a7c
14a3a6645331
1557b9206e4d
hex31648fc90f

212140542223 has 8 divisors (see below), whose sum is σ = 212311934208. Its totient is φ = 211969203864.

The previous prime is 212140542221. The next prime is 212140542301. The reversal of 212140542223 is 322245041212.

212140542223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 212140542223 - 21 = 212140542221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212140542191 and 212140542200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212140542221) 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 7 ways as a sum of consecutive naturals, for example, 11840490 + ... + 11858392.

It is an arithmetic number, because the mean of its divisors is an integer number (26538991776).

Almost surely, 2212140542223 is an apocalyptic number.

212140542223 is a deficient number, since it is larger than the sum of its proper divisors (171391985).

212140542223 is a wasteful number, since it uses less digits than its factorization.

212140542223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26813.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 212140542223 its reverse (322245041212), we get a palindrome (534385583435).

The spelling of 212140542223 in words is "two hundred twelve billion, one hundred forty million, five hundred forty-two thousand, two hundred twenty-three".

Divisors: 1 1627 7283 17903 11849441 29128181 130387549 212140542223