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30996086771 = 132647900761
BaseRepresentation
bin11100110111100000…
…101011111111110011
32222000011121100112202
4130313200223333303
51001434444234041
622123413413415
72145053250626
oct346740537763
988004540482
1030996086771
1112166534841
12601063a26b
132bcc862060
141700857dbd
15c162d5a9b
hex73782bff3

30996086771 has 8 divisors (see below), whose sum is σ = 33393048864. Its totient is φ = 28600931520.

The previous prime is 30996086687. The next prime is 30996086801. The reversal of 30996086771 is 17768069903.

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-30996086771 is a prime.

It is a super-2 number, since 2×309960867712 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30996086371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415970 + ... + 484791.

It is an arithmetic number, because the mean of its divisors is an integer number (4174131108).

Almost surely, 230996086771 is an apocalyptic number.

30996086771 is a deficient number, since it is larger than the sum of its proper divisors (2396962093).

30996086771 is a wasteful number, since it uses less digits than its factorization.

30996086771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903421.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The spelling of 30996086771 in words is "thirty billion, nine hundred ninety-six million, eighty-six thousand, seven hundred seventy-one".

Divisors: 1 13 2647 34411 900761 11709893 2384314367 30996086771