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30120673624 = 2319813190031
BaseRepresentation
bin11100000011010101…
…010000000101011000
32212202011100202110121
4130003111100011120
5443141343023444
621500502323024
72114263333666
oct340325200530
985664322417
1030120673624
11118573759a8
125a07429474
132ac0396802
14165a49bc36
15bb4514084
hex703550158

30120673624 has 16 divisors (see below), whose sum is σ = 56479410720. Its totient is φ = 15059497440.

The previous prime is 30120673621. The next prime is 30120673633. The reversal of 30120673624 is 42637602103.

It is a self number, because there is not a number n which added to its sum of digits gives 30120673624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30120673621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63489 + ... + 253519.

It is an arithmetic number, because the mean of its divisors is an integer number (3529963170).

Almost surely, 230120673624 is an apocalyptic number.

It is an amenable number.

30120673624 is a deficient number, since it is larger than the sum of its proper divisors (26358737096).

30120673624 is a wasteful number, since it uses less digits than its factorization.

30120673624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209850 (or 209846 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 34.

The spelling of 30120673624 in words is "thirty billion, one hundred twenty million, six hundred seventy-three thousand, six hundred twenty-four".

Divisors: 1 2 4 8 19813 39626 79252 158504 190031 380062 760124 1520248 3765084203 7530168406 15060336812 30120673624