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30022003123 = 729831781827
BaseRepresentation
bin11011111101011100…
…110110100110110011
32212111021200202222121
4123331130312212303
5442441113044443
621443015415111
72111654546620
oct337534664663
985437622877
1030022003123
1111806702332
12599a384497
132aa5aca1b8
14164b335347
15baaa234ed
hex6fd7369b3

30022003123 has 16 divisors (see below), whose sum is σ = 35921652480. Its totient is φ = 24546434976.

The previous prime is 30022003091. The next prime is 30022003147. The reversal of 30022003123 is 32130022003.

It is not a de Polignac number, because 30022003123 - 25 = 30022003091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30022003097 and 30022003106.

It is not an unprimeable number, because it can be changed into a prime (30022003153) 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 15 ways as a sum of consecutive naturals, for example, 874065 + ... + 907762.

It is an arithmetic number, because the mean of its divisors is an integer number (2245103280).

Almost surely, 230022003123 is an apocalyptic number.

30022003123 is a deficient number, since it is larger than the sum of its proper divisors (5899649357).

30022003123 is a wasteful number, since it uses less digits than its factorization.

30022003123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781946.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 30022003123 its reverse (32130022003), we get a palindrome (62152025126).

The spelling of 30022003123 in words is "thirty billion, twenty-two million, three thousand, one hundred twenty-three".

Divisors: 1 7 29 83 203 581 2407 16849 1781827 12472789 51672983 147891641 361710881 1035241487 4288857589 30022003123