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42122107 = 1719130409
BaseRepresentation
bin1010000010101…
…1101101111011
32221021000200001
42200223231323
541240401412
64102453431
71021013656
oct240535573
987230601
1042122107
112185aa65
1212134277
13895a731
14584689d
153a70957
hex282bb7b

42122107 has 8 divisors (see below), whose sum is σ = 46947600. Its totient is φ = 37557504.

The previous prime is 42122083. The next prime is 42122117. The reversal of 42122107 is 70122124.

It is a happy number.

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 42122107 - 27 = 42121979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42122117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64882 + ... + 65527.

It is an arithmetic number, because the mean of its divisors is an integer number (5868450).

Almost surely, 242122107 is an apocalyptic number.

42122107 is a deficient number, since it is larger than the sum of its proper divisors (4825493).

42122107 is a wasteful number, since it uses less digits than its factorization.

42122107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130445.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 42122107 is about 6490.1546206543. The cubic root of 42122107 is about 347.9392014057.

It can be divided in two parts, 42122 and 107, that multiplied together give a palindrome (4507054).

The spelling of 42122107 in words is "forty-two million, one hundred twenty-two thousand, one hundred seven".

Divisors: 1 17 19 323 130409 2216953 2477771 42122107