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30112031220122 = 275371997613853
BaseRepresentation
bin1101101100011000000001…
…11011001010000110011010
310221121200102020012102001002
412312030000323022012122
512421323414443020442
6144013135353025002
76225344130141215
oct666140073120632
9127550366172032
1030112031220122
11965a493671985
123463ab63b5162
1313a57246c4947
1476160423477c
1537343a39e732
hex1b6300eca19a

30112031220122 has 8 divisors (see below), whose sum is σ = 45174039694356. Its totient is φ = 15054017988672.

The previous prime is 30112031220121. The next prime is 30112031220133. The reversal of 30112031220122 is 22102213021103.

It can be written as a sum of positive squares in 2 ways, for example, as 30107487246841 + 4543973281 = 5487029^2 + 67409^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 30112031220094 and 30112031220103.

It is not an unprimeable number, because it can be changed into a prime (30112031220121) 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, 998791853 + ... + 998822000.

Almost surely, 230112031220122 is an apocalyptic number.

30112031220122 is a deficient number, since it is larger than the sum of its proper divisors (15062008474234).

30112031220122 is a wasteful number, since it uses less digits than its factorization.

30112031220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997621392.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 30112031220122 its reverse (22102213021103), we get a palindrome (52214244241225).

The spelling of 30112031220122 in words is "thirty trillion, one hundred twelve billion, thirty-one million, two hundred twenty thousand, one hundred twenty-two".

Divisors: 1 2 7537 15074 1997613853 3995227706 15056015610061 30112031220122