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42075101 = 192214479
BaseRepresentation
bin1010000010000…
…0001111011101
32221011122012002
42200200033131
541232400401
64101452045
71020426635
oct240401735
987148162
1042075101
1121828712
1212111025
138942213
1458336c5
153a61a6b
hex28203dd

42075101 has 4 divisors (see below), whose sum is σ = 44289600. Its totient is φ = 39860604.

The previous prime is 42075071. The next prime is 42075109. The reversal of 42075101 is 10157024.

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 42075101 - 26 = 42075037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42075109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1107221 + ... + 1107258.

It is an arithmetic number, because the mean of its divisors is an integer number (11072400).

Almost surely, 242075101 is an apocalyptic number.

It is an amenable number.

42075101 is a deficient number, since it is larger than the sum of its proper divisors (2214499).

42075101 is a wasteful number, since it uses less digits than its factorization.

42075101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214498.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 42075101 is about 6486.5322784983. The cubic root of 42075101 is about 347.8097261025.

The spelling of 42075101 in words is "forty-two million, seventy-five thousand, one hundred one".

Divisors: 1 19 2214479 42075101