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30555621302260 = 2251527781065113
BaseRepresentation
bin1101111001010010010001…
…11101000001111111110100
311000012002101210012101101111
412330221020331001333310
513001110403023133020
6144553020400004404
76302366531466625
oct674511075017764
9130162353171344
1030555621302260
11981062570714a
123515a73900704
1314084c8b022a2
14778c856d1a4c
1537ec4da32d5a
hex1bca48f41ff4

30555621302260 has 12 divisors (see below), whose sum is σ = 64166804734788. Its totient is φ = 12222248520896.

The previous prime is 30555621302251. The next prime is 30555621302279. The reversal of 30555621302260 is 6220312655503.

It can be written as a sum of positive squares in 2 ways, for example, as 18822790498576 + 11732830803684 = 4338524^2 + 3425322^2 .

It is a super-4 number, since 4×305556213022604 (a number of 55 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 763890532537 + ... + 763890532576.

It is an arithmetic number, because the mean of its divisors is an integer number (5347233727899).

Almost surely, 230555621302260 is an apocalyptic number.

It is an amenable number.

30555621302260 is an abundant number, since it is smaller than the sum of its proper divisors (33611183432528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30555621302260 is a wasteful number, since it uses less digits than its factorization.

30555621302260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527781065122 (or 1527781065120 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 40.

Adding to 30555621302260 its reverse (6220312655503), we get a palindrome (36775933957763).

The spelling of 30555621302260 in words is "thirty trillion, five hundred fifty-five billion, six hundred twenty-one million, three hundred two thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 1527781065113 3055562130226 6111124260452 7638905325565 15277810651130 30555621302260