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30795593472 = 28347212161
BaseRepresentation
bin11100101011100011…
…110111011100000000
32221111012100020110000
4130223203313130000
51001032132442342
622051452240000
72140100140230
oct345343673400
987435306400
1030795593472
11120733451a6
125b75470000
132b9a164377
1416c1d87cc0
15c038d044c
hex72b8f7700

30795593472 has 180 divisors, whose sum is σ = 104945508976. Its totient is φ = 8798699520.

The previous prime is 30795593467. The next prime is 30795593473. The reversal of 30795593472 is 27439559703.

30795593472 is a `hidden beast` number, since 3 + 0 + 7 + 9 + 5 + 593 + 47 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30795593473) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 39072 + ... + 251232.

Almost surely, 230795593472 is an apocalyptic number.

30795593472 is a gapful number since it is divisible by the number (32) 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 30795593472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52472754488).

30795593472 is an abundant number, since it is smaller than the sum of its proper divisors (74149915504).

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

30795593472 is an equidigital number, since it uses as much as digits as its factorization.

30795593472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212196 (or 212173 counting only the distinct ones).

The product of its (nonzero) digits is 7144200, while the sum is 54.

The spelling of 30795593472 in words is "thirty billion, seven hundred ninety-five million, five hundred ninety-three thousand, four hundred seventy-two".