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2001014244 = 223255583729
BaseRepresentation
bin111011101000101…
…0000110111100100
312011110021001111200
41313101100313210
513044224423434
6530320402500
7100405224525
oct16721206744
95143231450
102001014244
1193757a689
1247a176430
1325b740bc8
1414da8084c
15baa13199
hex77450de4

2001014244 has 18 divisors (see below), whose sum is σ = 5058119430. Its totient is φ = 667004736.

The previous prime is 2001014231. The next prime is 2001014251. The reversal of 2001014244 is 4424101002.

It can be written as a sum of positive squares in only one way, i.e., 1273633344 + 727380900 = 35688^2 + 26970^2 .

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 an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27791829 + ... + 27791900.

It is an arithmetic number, because the mean of its divisors is an integer number (281006635).

Almost surely, 22001014244 is an apocalyptic number.

It is an amenable number.

2001014244 is an abundant number, since it is smaller than the sum of its proper divisors (3057105186).

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

2001014244 is a wasteful number, since it uses less digits than its factorization.

2001014244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55583739 (or 55583734 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2001014244 is about 44732.6977053698. The cubic root of 2001014244 is about 1260.1339917973.

Adding to 2001014244 its reverse (4424101002), we get a palindrome (6425115246).

The spelling of 2001014244 in words is "two billion, one million, fourteen thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 9 12 18 36 55583729 111167458 166751187 222334916 333502374 500253561 667004748 1000507122 2001014244