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30705542627 = 67907505283
BaseRepresentation
bin11100100110001100…
…010110010111100011
32221020220220011220112
4130212030112113203
51000341104331002
622034514201535
72134624543304
oct344614262743
987226804815
1030705542627
1112027529711
125b4b2832ab
132b845c5246
1416b40267ab
15beaa43852
hex7263165e3

30705542627 has 8 divisors (see below), whose sum is σ = 31198255296. Its totient is φ = 30213842472.

The previous prime is 30705542617. The next prime is 30705542657. The reversal of 30705542627 is 72624550703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30705542627 is a prime.

It is a super-3 number, since 3×307055426273 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30705542617) 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, 191873 + ... + 313410.

It is an arithmetic number, because the mean of its divisors is an integer number (3899781912).

Almost surely, 230705542627 is an apocalyptic number.

30705542627 is a deficient number, since it is larger than the sum of its proper divisors (492712669).

30705542627 is an equidigital number, since it uses as much as digits as its factorization.

30705542627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506257.

The product of its (nonzero) digits is 352800, while the sum is 41.

The spelling of 30705542627 in words is "thirty billion, seven hundred five million, five hundred forty-two thousand, six hundred twenty-seven".

Divisors: 1 67 907 60769 505283 33853961 458291681 30705542627