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220432601 = 1012239787
BaseRepresentation
bin11010010001110…
…00100011011001
3120100210010200102
431020320203121
5422412320401
633512345145
75314434434
oct1510704331
9510703612
10220432601
11103479304
12619a51b5
133688c5bc
14213c081b
151454356b
hexd2388d9

220432601 has 8 divisors (see below), whose sum is σ = 223636224. Its totient is φ = 217249200.

The previous prime is 220432573. The next prime is 220432609. The reversal of 220432601 is 106234022.

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-220432601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220432609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17630 + ... + 27416.

It is an arithmetic number, because the mean of its divisors is an integer number (27954528).

Almost surely, 2220432601 is an apocalyptic number.

It is an amenable number.

220432601 is a deficient number, since it is larger than the sum of its proper divisors (3203623).

220432601 is a wasteful number, since it uses less digits than its factorization.

220432601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10111.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 220432601 is about 14846.9727890907. The cubic root of 220432601 is about 604.0765010261.

Adding to 220432601 its reverse (106234022), we get a palindrome (326666623).

The spelling of 220432601 in words is "two hundred twenty million, four hundred thirty-two thousand, six hundred one".

Divisors: 1 101 223 9787 22523 988487 2182501 220432601