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30825005779 = 227394334439
BaseRepresentation
bin11100101101010100…
…000100001011010011
32221120020200112112201
4130231110010023103
51001112200141104
622054422504031
72140605140341
oct345524041323
987506615481
1030825005779
1112088a04097
125b83295017
132ba32919b9
1416c5c42991
15c062900a4
hex72d5042d3

30825005779 has 8 divisors (see below), whose sum is σ = 30969550080. Its totient is φ = 30680538696.

The previous prime is 30825005749. The next prime is 30825005797. The reversal of 30825005779 is 97750052803.

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

It is a cyclic number.

It is not a de Polignac number, because 30825005779 - 25 = 30825005747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30825005749) 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, 877842 + ... + 912280.

It is an arithmetic number, because the mean of its divisors is an integer number (3871193760).

Almost surely, 230825005779 is an apocalyptic number.

30825005779 is a deficient number, since it is larger than the sum of its proper divisors (144544301).

30825005779 is a wasteful number, since it uses less digits than its factorization.

30825005779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38609.

The product of its (nonzero) digits is 529200, while the sum is 46.

The spelling of 30825005779 in words is "thirty billion, eight hundred twenty-five million, five thousand, seven hundred seventy-nine".

Divisors: 1 227 3943 34439 895061 7817653 135792977 30825005779