Search a number
-
+
1066908899 = 72171280803
BaseRepresentation
bin111111100101111…
…011110011100011
32202100120120212102
4333211323303203
54141112041044
6253511321015
735303401400
oct7745736343
92670516772
101066908899
114a82734a1
1225938016b
13140065a54
14a19a72a7
15639eb24e
hex3f97bce3

1066908899 has 12 divisors (see below), whose sum is σ = 1314104904. Its totient is φ = 860698944.

The previous prime is 1066908851. The next prime is 1066908923. The reversal of 1066908899 is 9988096601.

It is not a de Polignac number, because 1066908899 - 212 = 1066904803 is a prime.

It is a super-2 number, since 2×10669088992 = 2276589197530784402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066902899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 639569 + ... + 641234.

It is an arithmetic number, because the mean of its divisors is an integer number (109508742).

Almost surely, 21066908899 is an apocalyptic number.

1066908899 is a deficient number, since it is larger than the sum of its proper divisors (247196005).

1066908899 is a wasteful number, since it uses less digits than its factorization.

1066908899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280834 (or 1280827 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 56.

The square root of 1066908899 is about 32663.5714366938. The cubic root of 1066908899 is about 1021.8232477215.

The spelling of 1066908899 in words is "one billion, sixty-six million, nine hundred eight thousand, eight hundred ninety-nine".

Divisors: 1 7 17 49 119 833 1280803 8965621 21773651 62759347 152415557 1066908899