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30303344123 = 1323419241883
BaseRepresentation
bin11100001110001110…
…000101010111111011
32220012220002101021122
4130032032011113323
5444030124002443
621530545455455
72121642114023
oct341616052773
986186071248
1030303344123
11119404a1a58
125a5864158b
132b1c194070
14167684ca83
15bc5598968
hex70e3855fb

30303344123 has 16 divisors (see below), whose sum is σ = 34134670080. Its totient is φ = 26692162464.

The previous prime is 30303344117. The next prime is 30303344221. The reversal of 30303344123 is 32144330303.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 30303344123 - 210 = 30303343099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30303344092 and 30303344101.

It is not an unprimeable number, because it can be changed into a prime (30303344623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4340 + ... + 246222.

It is an arithmetic number, because the mean of its divisors is an integer number (2133416880).

Almost surely, 230303344123 is an apocalyptic number.

30303344123 is a deficient number, since it is larger than the sum of its proper divisors (3831325957).

30303344123 is a wasteful number, since it uses less digits than its factorization.

30303344123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242338.

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 30303344123 its reverse (32144330303), we get a palindrome (62447674426).

The spelling of 30303344123 in words is "thirty billion, three hundred three million, three hundred forty-four thousand, one hundred twenty-three".

Divisors: 1 13 23 299 419 5447 9637 125281 241883 3144479 5563309 72323017 101348977 1317536701 2331026471 30303344123