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30121411445 = 59461636749
BaseRepresentation
bin11100000011011000…
…000100001101110101
32212202012202020120022
4130003120010031311
5443142040131240
621500530214525
72114302526036
oct340330041565
985665666508
1030121411445
111185782a274
125a07724445
132ac05945a8
14165a610a8d
15bb460c9b5
hex703604375

30121411445 has 8 divisors (see below), whose sum is σ = 36149571000. Its totient is φ = 24094544320.

The previous prime is 30121411403. The next prime is 30121411451. The reversal of 30121411445 is 54411412103.

It can be written as a sum of positive squares in 4 ways, for example, as 3839165521 + 26282245924 = 61961^2 + 162118^2 .

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

It is not a de Polignac number, because 30121411445 - 230 = 29047669621 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271070 + ... + 365679.

It is an arithmetic number, because the mean of its divisors is an integer number (4518696375).

Almost surely, 230121411445 is an apocalyptic number.

It is an amenable number.

30121411445 is a deficient number, since it is larger than the sum of its proper divisors (6028159555).

30121411445 is an equidigital number, since it uses as much as digits as its factorization.

30121411445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646215.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 30121411445 its reverse (54411412103), we get a palindrome (84532823548).

The spelling of 30121411445 in words is "thirty billion, one hundred twenty-one million, four hundred eleven thousand, four hundred forty-five".

Divisors: 1 5 9461 47305 636749 3183745 6024282289 30121411445