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42130201 = 192217379
BaseRepresentation
bin1010000010110…
…1101100011001
32221021102202211
42200231230121
541241131301
64102555121
71021046401
oct240555431
987242684
1042130201
1121866053
1212138aa1
138961319
145849801
153a73051
hex282db19

42130201 has 4 divisors (see below), whose sum is σ = 44347600. Its totient is φ = 39912804.

The previous prime is 42130183. The next prime is 42130211. The reversal of 42130201 is 10203124.

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 42130201 - 25 = 42130169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42130211) 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, 1108671 + ... + 1108708.

It is an arithmetic number, because the mean of its divisors is an integer number (11086900).

Almost surely, 242130201 is an apocalyptic number.

It is an amenable number.

42130201 is a deficient number, since it is larger than the sum of its proper divisors (2217399).

42130201 is a wasteful number, since it uses less digits than its factorization.

42130201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217398.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 42130201 is about 6490.7781505764. The cubic root of 42130201 is about 347.9614861372.

Adding to 42130201 its reverse (10203124), we get a palindrome (52333325).

The spelling of 42130201 in words is "forty-two million, one hundred thirty thousand, two hundred one".

Divisors: 1 19 2217379 42130201