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42030312212 = 2276203241993
BaseRepresentation
bin100111001001001100…
…111010101100010100
311000111011110002021002
4213021030322230110
51142034224442322
631150343242432
73015356521250
oct471114725424
9130434402232
1042030312212
1116909019719
12818ba49418
133c6a8b0a35
14206a0b7260
15115ed85c92
hex9c933ab14

42030312212 has 24 divisors (see below), whose sum is σ = 84074523456. Its totient is φ = 18010012608.

The previous prime is 42030312179. The next prime is 42030312221. The reversal of 42030312212 is 21221303024.

It is a super-3 number, since 3×420303122123 (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52688 + ... + 294680.

It is an arithmetic number, because the mean of its divisors is an integer number (3503105144).

Almost surely, 242030312212 is an apocalyptic number.

It is an amenable number.

42030312212 is an abundant number, since it is smaller than the sum of its proper divisors (42044211244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42030312212 is a wasteful number, since it uses less digits than its factorization.

42030312212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248207 (or 248205 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 42030312212 its reverse (21221303024), we get a palindrome (63251615236).

The spelling of 42030312212 in words is "forty-two billion, thirty million, three hundred twelve thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 6203 12406 24812 43421 86842 173684 241993 483986 967972 1693951 3387902 6775804 1501082579 3002165158 6004330316 10507578053 21015156106 42030312212