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30412144033 = 171788949649
BaseRepresentation
bin11100010100101101…
…000111110110100001
32220111110210222200221
4130110231013312201
5444241002102113
621545433443041
72124432646645
oct342455076641
986443728627
1030412144033
1111996953a37
125a88b70481
132b388990cb
141687090c25
15bcedda98d
hex714b47da1

30412144033 has 4 divisors (see below), whose sum is σ = 32201093700. Its totient is φ = 28623194368.

The previous prime is 30412143943. The next prime is 30412144069. The reversal of 30412144033 is 33044121403.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25301037969 + 5111106064 = 159063^2 + 71492^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30412144033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30412143989 and 30412144007.

It is not an unprimeable number, because it can be changed into a prime (30412141033) 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, 894474808 + ... + 894474841.

It is an arithmetic number, because the mean of its divisors is an integer number (8050273425).

Almost surely, 230412144033 is an apocalyptic number.

It is an amenable number.

30412144033 is a deficient number, since it is larger than the sum of its proper divisors (1788949667).

30412144033 is a wasteful number, since it uses less digits than its factorization.

30412144033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788949666.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 30412144033 its reverse (33044121403), we get a palindrome (63456265436).

The spelling of 30412144033 in words is "thirty billion, four hundred twelve million, one hundred forty-four thousand, thirty-three".

Divisors: 1 17 1788949649 30412144033