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32421130681 = 191706375299
BaseRepresentation
bin11110001100011100…
…110011000110111001
310002200111002002021211
4132030130303012321
51012344302140211
622521041203121
72225266030612
oct361434630671
9102614062254
1032421130681
1112827979385
1263499304a1
133098b6b9c4
1417d7c08c09
15c9b475e21
hex78c7331b9

32421130681 has 4 divisors (see below), whose sum is σ = 34127506000. Its totient is φ = 30714755364.

The previous prime is 32421130673. The next prime is 32421130733. The reversal of 32421130681 is 18603112423.

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 32421130681 - 23 = 32421130673 is a prime.

It is a super-2 number, since 2×324211306812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32421130981) 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, 853187631 + ... + 853187668.

It is an arithmetic number, because the mean of its divisors is an integer number (8531876500).

Almost surely, 232421130681 is an apocalyptic number.

It is an amenable number.

32421130681 is a deficient number, since it is larger than the sum of its proper divisors (1706375319).

32421130681 is a wasteful number, since it uses less digits than its factorization.

32421130681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706375318.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 32421130681 in words is "thirty-two billion, four hundred twenty-one million, one hundred thirty thousand, six hundred eighty-one".

Divisors: 1 19 1706375299 32421130681