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30925619317 = 179791921817
BaseRepresentation
bin11100110011010011…
…111000000001110101
32221211021000020101001
4130303103320001311
51001313424304232
622112415203301
72143236266305
oct346323700165
987737006331
1030925619317
111212a78457a
125bb0b16531
132bbb08b838
1416d5353605
15c100166e7
hex7334f8075

30925619317 has 8 divisors (see below), whose sum is σ = 31103740800. Its totient is φ = 30747557664.

The previous prime is 30925619279. The next prime is 30925619321. The reversal of 30925619317 is 71391652903.

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 30925619317 - 231 = 28778135669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30925619117) 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, 1406593 + ... + 1428409.

It is an arithmetic number, because the mean of its divisors is an integer number (3887967600).

Almost surely, 230925619317 is an apocalyptic number.

It is an amenable number.

30925619317 is a deficient number, since it is larger than the sum of its proper divisors (178121483).

30925619317 is a wasteful number, since it uses less digits than its factorization.

30925619317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29915.

The product of its (nonzero) digits is 306180, while the sum is 46.

The spelling of 30925619317 in words is "thirty billion, nine hundred twenty-five million, six hundred nineteen thousand, three hundred seventeen".

Divisors: 1 179 7919 21817 1417501 3905243 172768823 30925619317