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3020111311 = 72292397883
BaseRepresentation
bin1011010000000011…
…0011110111001111
321210110212112212111
42310000303313033
522141122030221
61215403244451
7134561344150
oct26400636717
97713775774
103020111311
11130a857368
12703519727
13391906519
1420915d927
1512a217be1
hexb4033dcf

3020111311 has 16 divisors (see below), whose sum is σ = 3481574400. Its totient is φ = 2566253088.

The previous prime is 3020111299. The next prime is 3020111329. The reversal of 3020111311 is 1131110203.

It is not a de Polignac number, because 3020111311 - 25 = 3020111279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3020111291 and 3020111300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3020115311) 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, 379176 + ... + 387058.

It is an arithmetic number, because the mean of its divisors is an integer number (217598400).

Almost surely, 23020111311 is an apocalyptic number.

3020111311 is a deficient number, since it is larger than the sum of its proper divisors (461463089).

3020111311 is a wasteful number, since it uses less digits than its factorization.

3020111311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8358.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 3020111311 is about 54955.5394023205. The cubic root of 3020111311 is about 1445.4652319183.

Adding to 3020111311 its reverse (1131110203), we get a palindrome (4151221514).

The spelling of 3020111311 in words is "three billion, twenty million, one hundred eleven thousand, three hundred eleven".

Divisors: 1 7 229 239 1603 1673 7883 54731 55181 383117 1805207 1884037 12636449 13188259 431444473 3020111311