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32331000421 = 281115056941
BaseRepresentation
bin11110000111000100…
…111110101001100101
310002110012110222211001
4132013010332221211
51012203214003141
622504101313301
72223122653306
oct360704765145
9102405428731
1032331000421
1112791009165
126323705831
1330832a26a5
1417c9c667ad
15c935c0a31
hex78713ea65

32331000421 has 4 divisors (see below), whose sum is σ = 32446057644. Its totient is φ = 32215943200.

The previous prime is 32331000397. The next prime is 32331000437. The reversal of 32331000421 is 12400013323.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9425691396 + 22905309025 = 97086^2 + 151345^2 .

It is a cyclic number.

It is not a de Polignac number, because 32331000421 - 25 = 32331000389 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 (32331007421) 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 3 ways as a sum of consecutive naturals, for example, 57528190 + ... + 57528751.

It is an arithmetic number, because the mean of its divisors is an integer number (8111514411).

Almost surely, 232331000421 is an apocalyptic number.

It is an amenable number.

32331000421 is a deficient number, since it is larger than the sum of its proper divisors (115057223).

32331000421 is a wasteful number, since it uses less digits than its factorization.

32331000421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115057222.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 32331000421 its reverse (12400013323), we get a palindrome (44731013744).

The spelling of 32331000421 in words is "thirty-two billion, three hundred thirty-one million, four hundred twenty-one", and thus it is an aban number.

Divisors: 1 281 115056941 32331000421