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30120243420433 = 215371271962943
BaseRepresentation
bin1101101100100111010100…
…11010001101110100010001
310221122110121112220102001011
412312103222122031310101
512421442224303423213
6144021014313010521
76226054465531165
oct666235232156421
9127573545812034
1030120243420433
119662a181a5591
1234656086b3a41
1313a6432ba427a
14761b82b78ca5
1537376b31403d
hex1b64ea68dd11

30120243420433 has 8 divisors (see below), whose sum is σ = 30138476848128. Its totient is φ = 30102013937184.

The previous prime is 30120243420373. The next prime is 30120243420451. The reversal of 30120243420433 is 33402434202103.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 30120243420433 - 221 = 30120241323281 is a prime.

It is a super-2 number, since 2×301202434204332 (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 = 30120243420395 and 30120243420404.

It is not an unprimeable number, because it can be changed into a prime (30120243420133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14362960 + ... + 16325902.

It is an arithmetic number, because the mean of its divisors is an integer number (3767309606016).

Almost surely, 230120243420433 is an apocalyptic number.

It is an amenable number.

30120243420433 is a deficient number, since it is larger than the sum of its proper divisors (18233427695).

30120243420433 is a wasteful number, since it uses less digits than its factorization.

30120243420433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972223.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 30120243420433 its reverse (33402434202103), we get a palindrome (63522677622536).

The spelling of 30120243420433 in words is "thirty trillion, one hundred twenty billion, two hundred forty-three million, four hundred twenty thousand, four hundred thirty-three".

Divisors: 1 2153 7127 1962943 15344431 4226216279 13989894761 30120243420433