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2051510141 = 29113626033
BaseRepresentation
bin111101001000111…
…1000111101111101
312021222021111212002
41322101320331331
513200141311031
6535322552045
7101560356062
oct17221707575
95258244762
102051510141
11963029a2a
12493068625
13269040c35
14156666c69
15c0189ccb
hex7a478f7d

2051510141 has 8 divisors (see below), whose sum is σ = 2141036280. Its totient is φ = 1963236352.

The previous prime is 2051510107. The next prime is 2051510143. The reversal of 2051510141 is 1410151502.

It can be written as a sum of positive squares in 4 ways, for example, as 29658916 + 2021851225 = 5446^2 + 44965^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2051510141 - 230 = 977768317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051510143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309740 + ... + 316293.

It is an arithmetic number, because the mean of its divisors is an integer number (267629535).

Almost surely, 22051510141 is an apocalyptic number.

It is an amenable number.

2051510141 is a deficient number, since it is larger than the sum of its proper divisors (89526139).

2051510141 is a wasteful number, since it uses less digits than its factorization.

2051510141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626175.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 2051510141 is about 45293.5993380963. The cubic root of 2051510141 is about 1270.6459485006.

Adding to 2051510141 its reverse (1410151502), we get a palindrome (3461661643).

The spelling of 2051510141 in words is "two billion, fifty-one million, five hundred ten thousand, one hundred forty-one".

Divisors: 1 29 113 3277 626033 18154957 70741729 2051510141