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29630203693 = 89797417721
BaseRepresentation
bin11011100110000110…
…010000011100101101
32211110222110022012121
4123212012100130231
5441140313004233
621340102032541
72066156401336
oct334606203455
984428408177
1029630203693
1111625528652
1258ab118751
132a4289a40c
1416112a728d
15b8642e92d
hex6e619072d

29630203693 has 8 divisors (see below), whose sum is σ = 30000794040. Its totient is φ = 29260450560.

The previous prime is 29630203663. The next prime is 29630203709. The reversal of 29630203693 is 39630203692.

It can be written as a sum of positive squares in 4 ways, for example, as 5218328644 + 24411875049 = 72238^2 + 156243^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29630203693 - 225 = 29596649261 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 (29630203663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137928 + ... + 279793.

It is an arithmetic number, because the mean of its divisors is an integer number (3750099255).

Almost surely, 229630203693 is an apocalyptic number.

It is an amenable number.

29630203693 is a deficient number, since it is larger than the sum of its proper divisors (370590347).

29630203693 is an equidigital number, since it uses as much as digits as its factorization.

29630203693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418607.

The product of its (nonzero) digits is 314928, while the sum is 43.

Subtracting 29630203693 from its reverse (39630203692), we obtain a palindrome (9999999999).

The spelling of 29630203693 in words is "twenty-nine billion, six hundred thirty million, two hundred three thousand, six hundred ninety-three".

Divisors: 1 89 797 70933 417721 37177169 332923637 29630203693