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1689159216 = 24335190817
BaseRepresentation
bin110010010101110…
…1000011000110000
311100201110011211110
41210223220120300
511424411043331
6435340313320
756600421303
oct14453503060
94321404743
101689159216
11797539358
123b1842840
1320bc520c4
141204a2b3a
159d461946
hex64ae8630

1689159216 has 20 divisors (see below), whose sum is σ = 4363661432. Its totient is φ = 563053056.

The previous prime is 1689159161. The next prime is 1689159247. The reversal of 1689159216 is 6129519861.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 35190817 = 1689159216 / (1 + 6 + 8 + 9 + 1 + 5 + 9 + 2 + 1 + 6).

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, 17595361 + ... + 17595456.

Almost surely, 21689159216 is an apocalyptic number.

1689159216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1689159216 is an abundant number, since it is smaller than the sum of its proper divisors (2674502216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1689159216 is a wasteful number, since it uses less digits than its factorization.

1689159216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35190828 (or 35190822 counting only the distinct ones).

The product of its digits is 233280, while the sum is 48.

The square root of 1689159216 is about 41099.3821851375. The cubic root of 1689159216 is about 1190.9408598596.

The spelling of 1689159216 in words is "one billion, six hundred eighty-nine million, one hundred fifty-nine thousand, two hundred sixteen".

Divisors: 1 2 3 4 6 8 12 16 24 48 35190817 70381634 105572451 140763268 211144902 281526536 422289804 563053072 844579608 1689159216