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820282629 = 3409668527
BaseRepresentation
bin110000111001001…
…000010100000101
32010011111200020010
4300321020110011
53134443021004
6213221300433
726220200355
oct6071102405
92104450203
10820282629
11391034531
121aa864719
13100c34b4a
147ad28b65
154c031a89
hex30e48505

820282629 has 8 divisors (see below), whose sum is σ = 1096385920. Its totient is φ = 545517216.

The previous prime is 820282607. The next prime is 820282633. The reversal of 820282629 is 926282028.

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

It is not a de Polignac number, because 820282629 - 27 = 820282501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820282679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333037 + ... + 335490.

It is an arithmetic number, because the mean of its divisors is an integer number (137048240).

Almost surely, 2820282629 is an apocalyptic number.

It is an amenable number.

820282629 is a deficient number, since it is larger than the sum of its proper divisors (276103291).

820282629 is a wasteful number, since it uses less digits than its factorization.

820282629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668939.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 820282629 is about 28640.5766177987. The cubic root of 820282629 is about 936.0976857193.

The spelling of 820282629 in words is "eight hundred twenty million, two hundred eighty-two thousand, six hundred twenty-nine".

Divisors: 1 3 409 1227 668527 2005581 273427543 820282629