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3020112021 = 31006704007
BaseRepresentation
bin1011010000000011…
…0100000010010101
321210110212120211210
42310000310002111
522141122041041
61215403252033
7134561346213
oct26400640225
97713776753
103020112021
11130a857953
1270351a019
13391906944
1420915dcb3
1512a218016
hexb4034095

3020112021 has 4 divisors (see below), whose sum is σ = 4026816032. Its totient is φ = 2013408012.

The previous prime is 3020111993. The next prime is 3020112047. The reversal of 3020112021 is 1202110203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3020112021 - 27 = 3020111893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3020111988 and 3020112006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3020112061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503352001 + ... + 503352006.

It is an arithmetic number, because the mean of its divisors is an integer number (1006704008).

Almost surely, 23020112021 is an apocalyptic number.

It is an amenable number.

3020112021 is a deficient number, since it is larger than the sum of its proper divisors (1006704011).

3020112021 is a wasteful number, since it uses less digits than its factorization.

3020112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006704010.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 3020112021 is about 54955.5458620875. The cubic root of 3020112021 is about 1445.4653451901.

Adding to 3020112021 its reverse (1202110203), we get a palindrome (4222222224).

The spelling of 3020112021 in words is "three billion, twenty million, one hundred twelve thousand, twenty-one".

Divisors: 1 3 1006704007 3020112021