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6920448069 = 33765699491
BaseRepresentation
bin1100111000111110…
…11010100001000101
3122212022001012001110
412130133122201011
5103133113314234
63102413115233
7333331560303
oct63437324105
918768035043
106920448069
112a3145a077
121411788b19
138639a17b2
1449916d273
152a78531e9
hex19c7da845

6920448069 has 16 divisors (see below), whose sum is σ = 9479090880. Its totient is φ = 4487783040.

The previous prime is 6920448061. The next prime is 6920448083. The reversal of 6920448069 is 9608440296.

6920448069 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6920448069 - 23 = 6920448061 is a prime.

It is a super-2 number, since 2×69204480692 = 95785202951451657522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6920448061) 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 15 ways as a sum of consecutive naturals, for example, 724414 + ... + 733904.

It is an arithmetic number, because the mean of its divisors is an integer number (592443180).

Almost surely, 26920448069 is an apocalyptic number.

It is an amenable number.

6920448069 is a deficient number, since it is larger than the sum of its proper divisors (2558642811).

6920448069 is a wasteful number, since it uses less digits than its factorization.

6920448069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16100.

The product of its (nonzero) digits is 746496, while the sum is 48.

The square root of 6920448069 is about 83189.2304868845. The cubic root of 6920448069 is about 1905.6570154726.

The spelling of 6920448069 in words is "six billion, nine hundred twenty million, four hundred forty-eight thousand, sixty-nine".

Divisors: 1 3 37 111 6569 9491 19707 28473 243053 351167 729159 1053501 62346379 187039137 2306816023 6920448069