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919209068 = 22617372451
BaseRepresentation
bin110110110010100…
…000010001101100
32101001122122210022
4312302200101230
53340304142233
6231113501312
731531101551
oct6662402154
92331578708
10919209068
11431962418
12217a11838
13118590abb
148a11aa28
1555a73398
hex36ca046c

919209068 has 12 divisors (see below), whose sum is σ = 1611227352. Its totient is φ = 458858400.

The previous prime is 919209047. The next prime is 919209077. The reversal of 919209068 is 860902919.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183758 + ... + 188693.

It is an arithmetic number, because the mean of its divisors is an integer number (134268946).

Almost surely, 2919209068 is an apocalyptic number.

It is an amenable number.

919209068 is a deficient number, since it is larger than the sum of its proper divisors (692018284).

919209068 is a wasteful number, since it uses less digits than its factorization.

919209068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373072 (or 373070 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 919209068 is about 30318.4608448384. The cubic root of 919209068 is about 972.3100319526.

The spelling of 919209068 in words is "nine hundred nineteen million, two hundred nine thousand, sixty-eight".

Divisors: 1 2 4 617 1234 2468 372451 744902 1489804 229802267 459604534 919209068