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2067971239 = 17235288929
BaseRepresentation
bin111101101000010…
…1011110010100111
312100010020211020101
41323100223302213
513213400034424
6541111444531
7102150315445
oct17320536247
95303224211
102067971239
11971352444
12498686747
1326c585629
1415890db95
15c183c344
hex7b42bca7

2067971239 has 8 divisors (see below), whose sum is σ = 2284817760. Its totient is φ = 1861702656.

The previous prime is 2067971209. The next prime is 2067971251. The reversal of 2067971239 is 9321797602.

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 2067971239 - 213 = 2067963047 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 (2067971209) 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, 2644074 + ... + 2644855.

It is an arithmetic number, because the mean of its divisors is an integer number (285602220).

Almost surely, 22067971239 is an apocalyptic number.

2067971239 is a deficient number, since it is larger than the sum of its proper divisors (216846521).

2067971239 is a wasteful number, since it uses less digits than its factorization.

2067971239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5288969.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 2067971239 is about 45474.9517756754. The cubic root of 2067971239 is about 1274.0354081198.

The spelling of 2067971239 in words is "two billion, sixty-seven million, nine hundred seventy-one thousand, two hundred thirty-nine".

Divisors: 1 17 23 391 5288929 89911793 121645367 2067971239