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42680201 = 166725603
BaseRepresentation
bin1010001011001…
…1111110001001
32222022101020012
42202303332021
541411231301
64122441305
71025530034
oct242637611
988271205
1042680201
11221012a3
1212363235
138ac4775
14595001b
153b30ebb
hex28b3f89

42680201 has 4 divisors (see below), whose sum is σ = 42707472. Its totient is φ = 42652932.

The previous prime is 42680191. The next prime is 42680207. The reversal of 42680201 is 10208624.

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 a de Polignac number, because none of the positive numbers 2k-42680201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42680207) 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, 11135 + ... + 14468.

It is an arithmetic number, because the mean of its divisors is an integer number (10676868).

Almost surely, 242680201 is an apocalyptic number.

It is an amenable number.

42680201 is a deficient number, since it is larger than the sum of its proper divisors (27271).

42680201 is a wasteful number, since it uses less digits than its factorization.

42680201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27270.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 42680201 is about 6533.0085718603. The cubic root of 42680201 is about 349.4691298922.

Adding to 42680201 its reverse (10208624), we get a palindrome (52888825).

The spelling of 42680201 in words is "forty-two million, six hundred eighty thousand, two hundred one".

Divisors: 1 1667 25603 42680201