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920730841 = 22734711689
BaseRepresentation
bin110110111000010…
…011110011011001
32101011111222021021
4312320103303121
53341201341331
6231210242441
731550040322
oct6670236331
92334458237
10920730841
11432801788
12218426421
131189a4664
148a3d5449
1555c74211
hex36e13cd9

920730841 has 8 divisors (see below), whose sum is σ = 927531360. Its totient is φ = 913954848.

The previous prime is 920730821. The next prime is 920730883. The reversal of 920730841 is 148037029.

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 920730841 - 211 = 920728793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 920730797 and 920730806.

It is not an unprimeable number, because it can be changed into a prime (920730821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72925 + ... + 84613.

It is an arithmetic number, because the mean of its divisors is an integer number (115941420).

Almost surely, 2920730841 is an apocalyptic number.

It is an amenable number.

920730841 is a deficient number, since it is larger than the sum of its proper divisors (6800519).

920730841 is a wasteful number, since it uses less digits than its factorization.

920730841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12263.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 920730841 is about 30343.5469416481. The cubic root of 920730841 is about 972.8462971077.

The spelling of 920730841 in words is "nine hundred twenty million, seven hundred thirty thousand, eight hundred forty-one".

Divisors: 1 227 347 11689 78769 2653403 4056083 920730841