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2011012141 = 4229475529
BaseRepresentation
bin111011111011101…
…1001110000101101
312012011002000001011
41313313121300231
513104304342031
6531314545221
7100556215105
oct16767316055
95164060034
102011012141
11942189206
12481598211
13260831818
14151124205
15bb83a6b1
hex77dd9c2d

2011012141 has 4 divisors (see below), whose sum is σ = 2011491900. Its totient is φ = 2010532384.

The previous prime is 2011012121. The next prime is 2011012151. The reversal of 2011012141 is 1412101102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1365598116 + 645414025 = 36954^2 + 25405^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011012141 - 221 = 2008914989 is a prime.

It is a super-4 number, since 4×20110121414 (a number of 38 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011012121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233536 + ... + 241993.

It is an arithmetic number, because the mean of its divisors is an integer number (502872975).

Almost surely, 22011012141 is an apocalyptic number.

It is an amenable number.

2011012141 is a deficient number, since it is larger than the sum of its proper divisors (479759).

2011012141 is an equidigital number, since it uses as much as digits as its factorization.

2011012141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479758.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 2011012141 is about 44844.3100181060. The cubic root of 2011012141 is about 1262.2292234504.

Adding to 2011012141 its reverse (1412101102), we get a palindrome (3423113243).

The spelling of 2011012141 in words is "two billion, eleven million, twelve thousand, one hundred forty-one".

Divisors: 1 4229 475529 2011012141