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834953681 = 7121375503
BaseRepresentation
bin110001110001000…
…110000111010001
32011012010001010102
4301301012013101
53202222004211
6214503542145
726455663202
oct6161060721
92135101112
10834953681
11399345071
121b375a955
13103ca0843
147cc675a9
154d47da3b
hex31c461d1

834953681 has 8 divisors (see below), whose sum is σ = 847263744. Its totient is φ = 822659040.

The previous prime is 834953671. The next prime is 834953699. The reversal of 834953681 is 186359438.

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 834953681 - 218 = 834691537 is a prime.

It is a super-2 number, since 2×8349536812 = 1394295298830899522, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 834953681 parts by 40864 straight cuts.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (834953641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148976 + ... + 154478.

It is an arithmetic number, because the mean of its divisors is an integer number (105907968).

Almost surely, 2834953681 is an apocalyptic number.

It is an amenable number.

834953681 is a deficient number, since it is larger than the sum of its proper divisors (12310063).

834953681 is a wasteful number, since it uses less digits than its factorization.

834953681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7711.

The product of its digits is 622080, while the sum is 47.

The square root of 834953681 is about 28895.5650749384. The cubic root of 834953681 is about 941.6455562066.

The spelling of 834953681 in words is "eight hundred thirty-four million, nine hundred fifty-three thousand, six hundred eighty-one".

Divisors: 1 71 2137 5503 151727 390713 11759911 834953681