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30039382191 = 3713131839957
BaseRepresentation
bin11011111110011111…
…001001100010101111
32212112111101201120210
4123332133021202233
5443010040212231
621444440113503
72112255351510
oct337637114257
985474351523
1030039382191
11118154a24a5
1259a4165893
132aa95a3680
14164d77aa07
15bac307a46
hex6fe7c98af

30039382191 has 32 divisors (see below), whose sum is σ = 49671756288. Its totient is φ = 15723976320.

The previous prime is 30039382187. The next prime is 30039382193. The reversal of 30039382191 is 19128393003.

It is not a de Polignac number, because 30039382191 - 22 = 30039382187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30039382193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 384216 + ... + 455741.

It is an arithmetic number, because the mean of its divisors is an integer number (1552242384).

Almost surely, 230039382191 is an apocalyptic number.

30039382191 is a deficient number, since it is larger than the sum of its proper divisors (19632374097).

30039382191 is a wasteful number, since it uses less digits than its factorization.

30039382191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840111.

The product of its (nonzero) digits is 34992, while the sum is 39.

The spelling of 30039382191 in words is "thirty billion, thirty-nine million, three hundred eighty-two thousand, one hundred ninety-one".

Divisors: 1 3 7 13 21 39 91 131 273 393 917 1703 2751 5109 11921 35763 839957 2519871 5879699 10919441 17639097 32758323 76436087 110034367 229308261 330103101 770240569 1430446771 2310721707 4291340313 10013127397 30039382191