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42288646031 = 419710633303
BaseRepresentation
bin100111011000100110…
…011000011110001111
311001011011112210122022
4213120212120132033
51143101343133111
631232132240355
73024644363132
oct473046303617
9131134483568
1042288646031
1116a30924745
1282424700bb
133cac280798
142092522219
1511778b42db
hex9d899878f

42288646031 has 8 divisors (see below), whose sum is σ = 43766679264. Its totient is φ = 40831879680.

The previous prime is 42288646019. The next prime is 42288646051. The reversal of 42288646031 is 13064688224.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42288646031 is a prime.

It is a super-2 number, since 2×422886460312 (a number of 22 digits) contains 22 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 (42288646051) 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, 5312675 + ... + 5320628.

It is an arithmetic number, because the mean of its divisors is an integer number (5470834908).

Almost surely, 242288646031 is an apocalyptic number.

42288646031 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

42288646031 is a deficient number, since it is larger than the sum of its proper divisors (1478033233).

42288646031 is a wasteful number, since it uses less digits than its factorization.

42288646031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10633441.

The product of its (nonzero) digits is 442368, while the sum is 44.

The spelling of 42288646031 in words is "forty-two billion, two hundred eighty-eight million, six hundred forty-six thousand, thirty-one".

Divisors: 1 41 97 3977 10633303 435965423 1031430391 42288646031