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2011130312 = 23251391289
BaseRepresentation
bin111011111011111…
…0110100111001000
312012011022000010212
41313313312213020
513104322132222
6531321300252
7100560216452
oct16767664710
95164260125
102011130312
11942259a74
12481634688
13260873549
141511552d2
15bb8606e2
hex77df69c8

2011130312 has 8 divisors (see below), whose sum is σ = 3770869350. Its totient is φ = 1005565152.

The previous prime is 2011130293. The next prime is 2011130323. The reversal of 2011130312 is 2130311102.

It can be written as a sum of positive squares in only one way, i.e., 1844358916 + 166771396 = 42946^2 + 12914^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125695637 + ... + 125695652.

Almost surely, 22011130312 is an apocalyptic number.

It is an amenable number.

2011130312 is a deficient number, since it is larger than the sum of its proper divisors (1759739038).

2011130312 is a wasteful number, since it uses less digits than its factorization.

2011130312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251391295 (or 251391291 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2011130312 is about 44845.6275683594. The cubic root of 2011130312 is about 1262.2539466507.

Adding to 2011130312 its reverse (2130311102), we get a palindrome (4141441414).

The spelling of 2011130312 in words is "two billion, eleven million, one hundred thirty thousand, three hundred twelve".

Divisors: 1 2 4 8 251391289 502782578 1005565156 2011130312