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30202122210031 = 43933237526279
BaseRepresentation
bin1101101110111111110101…
…10001000000101011101111
310221221021221211021212212001
412313133322301000223233
512424312421241210111
6144122355143353131
76235013513002402
oct667377261005357
9127837854255761
1030202122210031
119694714690042
1234794597527a7
1313b10813245b5
14765b0d259d39
1537595e7011c1
hex1b77fac40aef

30202122210031 has 8 divisors (see below), whose sum is σ = 30904832407680. Its totient is φ = 29499427251672.

The previous prime is 30202122209969. The next prime is 30202122210037. The reversal of 30202122210031 is 13001222120203.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30202122210031 is a prime.

It is a super-2 number, since 2×302021222100312 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30202122209990 and 30202122210008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30202122210037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249750 + ... + 7776028.

It is an arithmetic number, because the mean of its divisors is an integer number (3863104050960).

Almost surely, 230202122210031 is an apocalyptic number.

30202122210031 is a deficient number, since it is larger than the sum of its proper divisors (702710197649).

30202122210031 is an equidigital number, since it uses as much as digits as its factorization.

30202122210031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7619645.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 30202122210031 its reverse (13001222120203), we get a palindrome (43203344330234).

The spelling of 30202122210031 in words is "thirty trillion, two hundred two billion, one hundred twenty-two million, two hundred ten thousand, thirty-one".

Divisors: 1 43 93323 4012889 7526279 323629997 702374935117 30202122210031