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30775648193 = 792231746929
BaseRepresentation
bin11100101010010111…
…110001111111000001
32221102210210220122222
4130222113301333001
51001012031220233
622045500540425
72136435456563
oct345227617701
987383726588
1030775648193
1112063061aa4
125b6a851715
132b95c9cb24
1416bd475333
15c01c90898
hex72a5f1fc1

30775648193 has 8 divisors (see below), whose sum is σ = 31304985600. Its totient is φ = 30249805248.

The previous prime is 30775648187. The next prime is 30775648213. The reversal of 30775648193 is 39184657703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30775648193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30775648093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 855848 + ... + 891081.

It is an arithmetic number, because the mean of its divisors is an integer number (3913123200).

Almost surely, 230775648193 is an apocalyptic number.

It is an amenable number.

30775648193 is a deficient number, since it is larger than the sum of its proper divisors (529337407).

30775648193 is a wasteful number, since it uses less digits than its factorization.

30775648193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747231.

The product of its (nonzero) digits is 3810240, while the sum is 53.

The spelling of 30775648193 in words is "thirty billion, seven hundred seventy-five million, six hundred forty-eight thousand, one hundred ninety-three".

Divisors: 1 79 223 17617 1746929 138007391 389565167 30775648193