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2068692985 = 5863479419
BaseRepresentation
bin111101101001101…
…1011111111111001
312100011121111021201
41323103123333321
513214041133420
6541135134201
7102156412612
oct17323337771
95304544251
102068692985
119717a5727
12498974361
1326c778cb8
14158a5ac09
15c193110a
hex7b4dbff9

2068692985 has 8 divisors (see below), whose sum is σ = 2485313280. Its totient is φ = 1653033264.

The previous prime is 2068692971. The next prime is 2068693019. The reversal of 2068692985 is 5892968602.

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 2068692985 - 221 = 2066595833 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235395 + ... + 244024.

It is an arithmetic number, because the mean of its divisors is an integer number (310664160).

Almost surely, 22068692985 is an apocalyptic number.

It is an amenable number.

2068692985 is a deficient number, since it is larger than the sum of its proper divisors (416620295).

2068692985 is an equidigital number, since it uses as much as digits as its factorization.

2068692985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480287.

The product of its (nonzero) digits is 3732480, while the sum is 55.

The square root of 2068692985 is about 45482.8867267679. The cubic root of 2068692985 is about 1274.1836086020.

The spelling of 2068692985 in words is "two billion, sixty-eight million, six hundred ninety-two thousand, nine hundred eighty-five".

Divisors: 1 5 863 4315 479419 2397095 413738597 2068692985