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30555249986 = 283661927809
BaseRepresentation
bin11100011101001111…
…000001110101000010
32220212110002112011102
4130131033001311002
51000034120444421
622011545014402
72131121224322
oct343517016502
986773075142
1030555249986
1111a5a707618
125b08a84402
132b5c4230a1
14169c0a3282
15bdc75760b
hex71d3c1d42

30555249986 has 16 divisors (see below), whose sum is σ = 46393754400. Its totient is φ = 15090734208.

The previous prime is 30555249953. The next prime is 30555249997. The reversal of 30555249986 is 68994255503.

It is a Curzon number.

It is an unprimeable number.

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, 1084850 + ... + 1112658.

It is an arithmetic number, because the mean of its divisors is an integer number (2899609650).

Almost surely, 230555249986 is an apocalyptic number.

30555249986 is a deficient number, since it is larger than the sum of its proper divisors (15838504414).

30555249986 is a wasteful number, since it uses less digits than its factorization.

30555249986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34513.

The product of its (nonzero) digits is 11664000, while the sum is 56.

The spelling of 30555249986 in words is "thirty billion, five hundred fifty-five million, two hundred forty-nine thousand, nine hundred eighty-six".

Divisors: 1 2 83 166 6619 13238 27809 55618 549377 1098754 2308147 4616294 184067771 368135542 15277624993 30555249986