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30120023032 = 2311342272989
BaseRepresentation
bin11100000011010010…
…110001001111111000
32212202010010201000121
4130003102301033320
5443141211214112
621500440343024
72114254654141
oct340322611770
985663121017
1030120023032
1111856a71120
125a07174a74
132ac01c9648
14165a36cac8
15bb4436407
hex7034b13f8

30120023032 has 16 divisors (see below), whose sum is σ = 61609138200. Its totient is φ = 13690919520.

The previous prime is 30120023023. The next prime is 30120023053. The reversal of 30120023032 is 23032002103.

It is a junction number, because it is equal to n+sod(n) for n = 30120022997 and 30120023015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171136407 + ... + 171136582.

Almost surely, 230120023032 is an apocalyptic number.

It is an amenable number.

30120023032 is an abundant number, since it is smaller than the sum of its proper divisors (31489115168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30120023032 is a wasteful number, since it uses less digits than its factorization.

30120023032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342273006 (or 342273002 counting only the distinct ones).

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

Adding to 30120023032 its reverse (23032002103), we get a palindrome (53152025135).

The spelling of 30120023032 in words is "thirty billion, one hundred twenty million, twenty-three thousand, thirty-two".

Divisors: 1 2 4 8 11 22 44 88 342272989 684545978 1369091956 2738183912 3765002879 7530005758 15060011516 30120023032