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30793389120 = 26325133722229
BaseRepresentation
bin11100101011011011…
…011101010001000000
32221111001012020122100
4130223123131101000
51001031101422440
622051333110400
72140042326444
oct345333352100
987431166570
1030793389120
111207207a01a
125b74788400
132b99871c10
1416c1972824
15c035e7230
hex72b6dd440

30793389120 has 336 divisors, whose sum is σ = 117151922160. Its totient is φ = 7374716928.

The previous prime is 30793389101. The next prime is 30793389191. The reversal of 30793389120 is 2198339703.

30793389120 is a `hidden beast` number, since 307 + 9 + 338 + 9 + 1 + 2 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 759112704 + 30034276416 = 27552^2 + 173304^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

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 47 ways as a sum of consecutive naturals, for example, 1374166 + ... + 1396394.

It is an arithmetic number, because the mean of its divisors is an integer number (348666435).

Almost surely, 230793389120 is an apocalyptic number.

30793389120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30793389120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58575961080).

30793389120 is an abundant number, since it is smaller than the sum of its proper divisors (86358533040).

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

30793389120 is a wasteful number, since it uses less digits than its factorization.

30793389120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22302 (or 22289 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 30793389120 in words is "thirty billion, seven hundred ninety-three million, three hundred eighty-nine thousand, one hundred twenty".