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30663448429 = 35386865293
BaseRepresentation
bin11100100011101011…
…110001011101101101
32221010222200120112011
4130203223301131231
51000244320322204
622030412041221
72133604003555
oct344353613555
987128616464
1030663448429
1112005798719
125b39163211
132b78977433
1416ac5ca165
15be6ecb304
hex723af176d

30663448429 has 4 divisors (see below), whose sum is σ = 30750314076. Its totient is φ = 30576582784.

The previous prime is 30663448411. The next prime is 30663448441. The reversal of 30663448429 is 92484436603.

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 4382175204 + 26281273225 = 66198^2 + 162115^2 .

It is a cyclic number.

It is not a de Polignac number, because 30663448429 - 233 = 22073513837 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 (30663448229) 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, 43432294 + ... + 43432999.

It is an arithmetic number, because the mean of its divisors is an integer number (7687578519).

Almost surely, 230663448429 is an apocalyptic number.

It is an amenable number.

30663448429 is a deficient number, since it is larger than the sum of its proper divisors (86865647).

30663448429 is an equidigital number, since it uses as much as digits as its factorization.

30663448429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86865646.

The product of its (nonzero) digits is 2985984, while the sum is 49.

The spelling of 30663448429 in words is "thirty billion, six hundred sixty-three million, four hundred forty-eight thousand, four hundred twenty-nine".

Divisors: 1 353 86865293 30663448429