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920834065 = 5184166813
BaseRepresentation
bin110110111000101…
…101000000010001
32101011201012212101
4312320231000101
53341213142230
6231212400401
731550650264
oct6670550021
92334635771
10920834065
11432872298
12218476101
13118a0c638
148a420cdb
1555c94aca
hex36e2d011

920834065 has 4 divisors (see below), whose sum is σ = 1105000884. Its totient is φ = 736667248.

The previous prime is 920834041. The next prime is 920834099. The reversal of 920834065 is 560438029.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560438029 = 2412325469.

It can be written as a sum of positive squares in 2 ways, for example, as 551733121 + 369100944 = 23489^2 + 19212^2 .

It is a cyclic number.

It is not a de Polignac number, because 920834065 - 27 = 920833937 is a prime.

It is a super-3 number, since 3×9208340653 (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 92083402 + ... + 92083411.

It is an arithmetic number, because the mean of its divisors is an integer number (276250221).

Almost surely, 2920834065 is an apocalyptic number.

It is an amenable number.

920834065 is a deficient number, since it is larger than the sum of its proper divisors (184166819).

920834065 is a wasteful number, since it uses less digits than its factorization.

920834065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184166818.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 920834065 is about 30345.2478157619. The cubic root of 920834065 is about 972.8826513201.

The spelling of 920834065 in words is "nine hundred twenty million, eight hundred thirty-four thousand, sixty-five".

Divisors: 1 5 184166813 920834065