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30282445831 = 1117719225227
BaseRepresentation
bin11100001100111110…
…010111010000000111
32220011102202122012211
4130030332113100013
5444004301231311
621524521524251
72121266354041
oct341476272007
986142678184
1030282445831
111192a718840
125a51643687
132b17a57b01
141673b6ca91
15bc381b821
hex70cf97407

30282445831 has 16 divisors (see below), whose sum is σ = 35027458560. Its totient is φ = 25873962880.

The previous prime is 30282445819. The next prime is 30282445877. The reversal of 30282445831 is 13854428203.

It is a cyclic number.

It is not a de Polignac number, because 30282445831 - 217 = 30282314759 is a prime.

It is a super-2 number, since 2×302824458312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30282445631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21840 + ... + 247066.

It is an arithmetic number, because the mean of its divisors is an integer number (2189216160).

Almost surely, 230282445831 is an apocalyptic number.

30282445831 is a deficient number, since it is larger than the sum of its proper divisors (4745012729).

30282445831 is a wasteful number, since it uses less digits than its factorization.

30282445831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225974.

The product of its (nonzero) digits is 184320, while the sum is 40.

The spelling of 30282445831 in words is "thirty billion, two hundred eighty-two million, four hundred forty-five thousand, eight hundred thirty-one".

Divisors: 1 11 17 187 719 7909 12223 134453 225227 2477497 3828859 42117449 161938213 1781320343 2752949621 30282445831