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42210123213 = 361673442633
BaseRepresentation
bin100111010011111010…
…110101110111001101
311000221200210102120210
4213103322311313031
51142421242420323
631220245233033
73023002061466
oct472372656715
9130850712523
1042210123213
11169a0572355
128220102779
133c98c1988b
142085d21d6d
151170a53293
hex9d3eb5dcd

42210123213 has 16 divisors (see below), whose sum is σ = 58056579776. Its totient is φ = 27265645440.

The previous prime is 42210123209. The next prime is 42210123229. The reversal of 42210123213 is 31232101224.

It is not a de Polignac number, because 42210123213 - 22 = 42210123209 is a prime.

It is a super-3 number, since 3×422101232133 (a number of 33 digits) contains 333 as substring.

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 42210123213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42210123913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1709056 + ... + 1733577.

It is an arithmetic number, because the mean of its divisors is an integer number (3628536236).

Almost surely, 242210123213 is an apocalyptic number.

It is an amenable number.

42210123213 is a deficient number, since it is larger than the sum of its proper divisors (15846456563).

42210123213 is a wasteful number, since it uses less digits than its factorization.

42210123213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442764.

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

Adding to 42210123213 its reverse (31232101224), we get a palindrome (73442224437).

The spelling of 42210123213 in words is "forty-two billion, two hundred ten million, one hundred twenty-three thousand, two hundred thirteen".

Divisors: 1 3 61 67 183 201 4087 12261 3442633 10327899 210000613 230656411 630001839 691969233 14070041071 42210123213