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2130376779 = 325920032
BaseRepresentation
bin111111011111010…
…1111100001001011
312111110200100112200
41332332233201023
513330334024104
6551221211243
7103535622006
oct17676574113
95443610480
102130376779
119a35a6673
124b5560b23
1327c49549b
14162d1653d
15c7067b39
hex7efaf84b

2130376779 has 18 divisors (see below), whose sum is σ = 3130930140. Its totient is φ = 1395482088.

The previous prime is 2130376763. The next prime is 2130376793. The reversal of 2130376779 is 9776730312.

It is not a de Polignac number, because 2130376779 - 24 = 2130376763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2130376579) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1062592 + ... + 1064594.

Almost surely, 22130376779 is an apocalyptic number.

2130376779 is a deficient number, since it is larger than the sum of its proper divisors (1000553361).

2130376779 is an frugal number, since it uses more digits than its factorization.

2130376779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4071 (or 2065 counting only the distinct ones).

The product of its (nonzero) digits is 333396, while the sum is 45.

The square root of 2130376779 is about 46156.0047989425. The cubic root of 2130376779 is about 1286.7242124909.

The spelling of 2130376779 in words is "two billion, one hundred thirty million, three hundred seventy-six thousand, seven hundred seventy-nine".

Divisors: 1 3 9 59 177 531 2003 6009 18027 118177 354531 1063593 4012009 12036027 36108081 236708531 710125593 2130376779