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30830675679 = 331973823271
BaseRepresentation
bin11100101101101001…
…101100011011011111
32221120122100121012000
4130231221230123133
51001120123110204
622055144213343
72141004263556
oct345551543337
987518317160
1030830675679
1112091126a61
125b8516a253
132ba44c867b
1416c68bad9d
15c06a10039
hex72da6c6df

30830675679 has 32 divisors (see below), whose sum is σ = 48737702400. Its totient is φ = 19205242560.

The previous prime is 30830675653. The next prime is 30830675683. The reversal of 30830675679 is 97657603803.

It is not a de Polignac number, because 30830675679 - 25 = 30830675647 is a prime.

It is a super-2 number, since 2×308306756792 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30830675279) 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, 374187 + ... + 449084.

It is an arithmetic number, because the mean of its divisors is an integer number (1523053200).

Almost surely, 230830675679 is an apocalyptic number.

30830675679 is a deficient number, since it is larger than the sum of its proper divisors (17907026721).

30830675679 is a wasteful number, since it uses less digits than its factorization.

30830675679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823372 (or 823366 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

The spelling of 30830675679 in words is "thirty billion, eight hundred thirty million, six hundred seventy-five thousand, six hundred seventy-nine".

Divisors: 1 3 9 19 27 57 73 171 219 513 657 1387 1971 4161 12483 37449 823271 2469813 7409439 15642149 22228317 46926447 60098783 140779341 180296349 422338023 540889047 1141876877 1622667141 3425630631 10276891893 30830675679