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2001311230 = 2517194713183
BaseRepresentation
bin111011101001001…
…1001010111111110
312011110211010220011
41313102121113332
513044313424410
6530331013434
7100410602422
oct16722312776
95143733804
102001311230
11937762826
1247a29a27a
1325b816139
1414db1ab82
15baa7118a
hex774995fe

2001311230 has 64 divisors (see below), whose sum is σ = 4100751360. Its totient is φ = 698540544.

The previous prime is 2001311209. The next prime is 2001311243. The reversal of 2001311230 is 321131002.

It is a super-2 number, since 2×20013112302 = 8010493278648225800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2001311230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145219 + ... + 158401.

It is an arithmetic number, because the mean of its divisors is an integer number (64074240).

Almost surely, 22001311230 is an apocalyptic number.

2001311230 is an abundant number, since it is smaller than the sum of its proper divisors (2099440130).

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

2001311230 is a wasteful number, since it uses less digits than its factorization.

2001311230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13273.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2001311230 is about 44736.0171450253. The cubic root of 2001311230 is about 1260.1963307906.

Adding to 2001311230 its reverse (321131002), we get a palindrome (2322442232).

The spelling of 2001311230 in words is "two billion, one million, three hundred eleven thousand, two hundred thirty".

Divisors: 1 2 5 10 17 19 34 38 47 85 94 95 170 190 235 323 470 646 799 893 1598 1615 1786 3230 3995 4465 7990 8930 13183 15181 26366 30362 65915 75905 131830 151810 224111 250477 448222 500954 619601 1120555 1239202 1252385 2241110 2504770 3098005 4258109 6196010 8516218 10533217 11772419 21066434 21290545 23544838 42581090 52666085 58862095 105332170 117724190 200131123 400262246 1000655615 2001311230