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2001415044 = 223533146879
BaseRepresentation
bin111011101001011…
…0010101110000100
312011111000102022010
41313102302232010
513044330240134
6530333134220
7100411514166
oct16722625604
95144012263
102001415044
11937823822
1247a32a370
1325b851475
1414db46936
15baa91ce9
hex774b2b84

2001415044 has 24 divisors (see below), whose sum is σ = 4758082560. Its totient is φ = 654550624.

The previous prime is 2001415021. The next prime is 2001415061. The reversal of 2001415044 is 4405141002.

It is a happy number.

2001415044 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2001415044.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1572804 + ... + 1574075.

It is an arithmetic number, because the mean of its divisors is an integer number (198253440).

Almost surely, 22001415044 is an apocalyptic number.

It is an amenable number.

2001415044 is an abundant number, since it is smaller than the sum of its proper divisors (2756667516).

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

2001415044 is a wasteful number, since it uses less digits than its factorization.

2001415044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3146939 (or 3146937 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2001415044 is about 44737.1774254925. The cubic root of 2001415044 is about 1260.2181204649.

Adding to 2001415044 its reverse (4405141002), we get a palindrome (6406556046).

The spelling of 2001415044 in words is "two billion, one million, four hundred fifteen thousand, forty-four".

Divisors: 1 2 3 4 6 12 53 106 159 212 318 636 3146879 6293758 9440637 12587516 18881274 37762548 166784587 333569174 500353761 667138348 1000707522 2001415044