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30947790727 = 743237102253
BaseRepresentation
bin11100110100101000…
…011100111110000111
32221212210201122211101
4130310220130332013
51001340113300402
622114530320531
72143625611060
oct346450347607
987783648741
1030947790727
1112141248257
125bb8429147
132bc2852409
1416d8285567
15c11e45b87
hex734a1cf87

30947790727 has 8 divisors (see below), whose sum is σ = 35370067616. Its totient is φ = 26525804832.

The previous prime is 30947790719. The next prime is 30947790763. The reversal of 30947790727 is 72709774903.

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 30947790727 - 23 = 30947790719 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 (30947790787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251533 + ... + 353785.

It is an arithmetic number, because the mean of its divisors is an integer number (4421258452).

Almost surely, 230947790727 is an apocalyptic number.

30947790727 is a deficient number, since it is larger than the sum of its proper divisors (4422276889).

30947790727 is a wasteful number, since it uses less digits than its factorization.

30947790727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145497.

The product of its (nonzero) digits is 4667544, while the sum is 55.

The spelling of 30947790727 in words is "thirty billion, nine hundred forty-seven million, seven hundred ninety thousand, seven hundred twenty-seven".

Divisors: 1 7 43237 102253 302659 715771 4421112961 30947790727