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30743721048 = 2332944172013
BaseRepresentation
bin11100101000011101…
…111111010001011000
32221100120201211212010
4130220131333101120
51000430343033143
622042400345520
72135600213535
oct345035772130
987316654763
1030743721048
1112047035727
125b600152a0
132b8c4a1921
1416b9123d8c
15bee085a33
hex72877f458

30743721048 has 32 divisors (see below), whose sum is σ = 79509625200. Its totient is φ = 9894530688.

The previous prime is 30743721037. The next prime is 30743721049. The reversal of 30743721048 is 84012734703.

It is a junction number, because it is equal to n+sod(n) for n = 30743720997 and 30743721015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30743721049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22085311 + ... + 22086702.

Almost surely, 230743721048 is an apocalyptic number.

It is an amenable number.

30743721048 is an abundant number, since it is smaller than the sum of its proper divisors (48765904152).

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

30743721048 is a wasteful number, since it uses less digits than its factorization.

30743721048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44172051 (or 44172047 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 30743721048 in words is "thirty billion, seven hundred forty-three million, seven hundred twenty-one thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 24 29 58 87 116 174 232 348 696 44172013 88344026 132516039 176688052 265032078 353376104 530064156 1060128312 1280988377 2561976754 3842965131 5123953508 7685930262 10247907016 15371860524 30743721048