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42010040014421 = 268367915653899
BaseRepresentation
bin10011000110101001110011…
…00000110001011001010101
312111202010020220211102212112
421203110321200301121111
521001243030220430141
6225203051305400405
711564060645211623
oct1143247140613125
9174663226742775
1042010040014421
11124273a3430336
1248659b1499105
131a596b6bb956b
14a53422546513
154ccb9e35d7eb
hex263539831655

42010040014421 has 4 divisors (see below), whose sum is σ = 42010058352000. Its totient is φ = 42010021676844.

The previous prime is 42010040014417. The next prime is 42010040014429. The reversal of 42010040014421 is 12441004001024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42010040014421 - 22 = 42010040014417 is a prime.

It is a super-3 number, since 3×420100400144213 (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42010040014429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5143271 + ... + 10510628.

It is an arithmetic number, because the mean of its divisors is an integer number (10502514588000).

Almost surely, 242010040014421 is an apocalyptic number.

It is an amenable number.

42010040014421 is a deficient number, since it is larger than the sum of its proper divisors (18337579).

42010040014421 is a wasteful number, since it uses less digits than its factorization.

42010040014421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18337578.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 42010040014421 its reverse (12441004001024), we get a palindrome (54451044015445).

The spelling of 42010040014421 in words is "forty-two trillion, ten billion, forty million, fourteen thousand, four hundred twenty-one".

Divisors: 1 2683679 15653899 42010040014421