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42320430433 = 401617171049
BaseRepresentation
bin100111011010011111…
…101000010101100001
311001020101100121122101
4213122133220111201
51143133012233213
631235225410401
73025511503051
oct473237502541
9131211317571
1042320430433
1116a47863846
128251039a01
133cb5a2ba18
142096837561
15117a591bdd
hex9da7e8561

42320430433 has 8 divisors (see below), whose sum is σ = 42494977800. Its totient is φ = 42146227200.

The previous prime is 42320430421. The next prime is 42320430457. The reversal of 42320430433 is 33403402324.

It can be written as a sum of positive squares in 4 ways, for example, as 566820864 + 41753609569 = 23808^2 + 204337^2 .

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-42320430433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42320430403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161893 + ... + 332941.

It is an arithmetic number, because the mean of its divisors is an integer number (5311872225).

Almost surely, 242320430433 is an apocalyptic number.

It is an amenable number.

42320430433 is a deficient number, since it is larger than the sum of its proper divisors (174547367).

42320430433 is a wasteful number, since it uses less digits than its factorization.

42320430433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172067.

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 42320430433 its reverse (33403402324), we get a palindrome (75723832757).

The spelling of 42320430433 in words is "forty-two billion, three hundred twenty million, four hundred thirty thousand, four hundred thirty-three".

Divisors: 1 401 617 171049 247417 68590649 105537233 42320430433