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3021113412 = 223283919817
BaseRepresentation
bin1011010000010010…
…1000100001000100
321210112202110111100
42310010220201010
522141401112122
61215440540100
7134603016552
oct26404504104
97715673440
103021113412
111310381249
12703921630
13391b97695
14209340bd2
1512a364aac
hexb4128844

3021113412 has 18 divisors (see below), whose sum is σ = 7636703438. Its totient is φ = 1007037792.

The previous prime is 3021113387. The next prime is 3021113419. The reversal of 3021113412 is 2143111203.

3021113412 is a `hidden beast` number, since 30 + 211 + 13 + 412 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2441941056 + 579172356 = 49416^2 + 24066^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (3021113419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41959873 + ... + 41959944.

Almost surely, 23021113412 is an apocalyptic number.

It is an amenable number.

3021113412 is an abundant number, since it is smaller than the sum of its proper divisors (4615590026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3021113412 is a wasteful number, since it uses less digits than its factorization.

3021113412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83919827 (or 83919822 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 3021113412 is about 54964.6560254861. The cubic root of 3021113412 is about 1445.6250871715.

Adding to 3021113412 its reverse (2143111203), we get a palindrome (5164224615).

The spelling of 3021113412 in words is "three billion, twenty-one million, one hundred thirteen thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 83919817 167839634 251759451 335679268 503518902 755278353 1007037804 1510556706 3021113412