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30395021349 = 37111103119293
BaseRepresentation
bin11100010011101011…
…110011100000100101
32220110021121001210110
4130103223303200211
5444222111140344
621544022443233
72124134263410
oct342353634045
986407531713
1030395021349
1111988219460
125a83293519
132b35182544
141684ab4b77
15bcd6573b9
hex713af3825

30395021349 has 32 divisors (see below), whose sum is σ = 50573021184. Its totient is φ = 15775174080.

The previous prime is 30395021311. The next prime is 30395021353. The reversal of 30395021349 is 94312059303.

It is not a de Polignac number, because 30395021349 - 28 = 30395021093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30395021359) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195147 + ... + 314439.

It is an arithmetic number, because the mean of its divisors is an integer number (1580406912).

Almost surely, 230395021349 is an apocalyptic number.

It is an amenable number.

30395021349 is a deficient number, since it is larger than the sum of its proper divisors (20177999835).

30395021349 is a wasteful number, since it uses less digits than its factorization.

30395021349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120417.

The product of its (nonzero) digits is 87480, while the sum is 39.

The spelling of 30395021349 in words is "thirty billion, three hundred ninety-five million, twenty-one thousand, three hundred forty-nine".

Divisors: 1 3 7 11 21 33 77 231 1103 3309 7721 12133 23163 36399 84931 119293 254793 357879 835051 1312223 2505153 3936669 9185561 27556683 131580179 394740537 921061253 1447381969 2763183759 4342145907 10131673783 30395021349