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928068681 = 3337917971
BaseRepresentation
bin110111010100010…
…011010001001001
32101200022202220010
4313110103101021
53400041144211
6232031422133
731666311411
oct6724232111
92350282803
10928068681
11436963811
1221a984949
1311a373587
148b385641
15567234a6
hex37513449

928068681 has 8 divisors (see below), whose sum is σ = 1241098144. Its totient is φ = 616875840.

The previous prime is 928068679. The next prime is 928068697. The reversal of 928068681 is 186860829.

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

It is not a de Polignac number, because 928068681 - 21 = 928068679 is a prime.

It is a super-2 number, since 2×9280686812 = 1722622953306159522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 928068681.

It is not an unprimeable number, because it can be changed into a prime (928068881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457975 + ... + 459996.

It is an arithmetic number, because the mean of its divisors is an integer number (155137268).

Almost surely, 2928068681 is an apocalyptic number.

It is an amenable number.

928068681 is a deficient number, since it is larger than the sum of its proper divisors (313029463).

928068681 is a wasteful number, since it uses less digits than its factorization.

928068681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918311.

The product of its (nonzero) digits is 331776, while the sum is 48.

The square root of 928068681 is about 30464.2196847384. The cubic root of 928068681 is about 975.4238546358.

The spelling of 928068681 in words is "nine hundred twenty-eight million, sixty-eight thousand, six hundred eighty-one".

Divisors: 1 3 337 1011 917971 2753913 309356227 928068681