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1068960809 = 74719716493
BaseRepresentation
bin111111101101110…
…000110000101001
32202111102211120002
4333231300300221
54142123221214
6254023312345
735330005550
oct7755606051
92674384502
101068960809
114a9445094
12259bab6b5
131406039b7
14a1d7cd97
1563ca41de
hex3fb70c29

1068960809 has 16 divisors (see below), whose sum is σ = 1254071808. Its totient is φ = 892151232.

The previous prime is 1068960797. The next prime is 1068960839. The reversal of 1068960809 is 9080698601.

It is not a de Polignac number, because 1068960809 - 28 = 1068960553 is a prime.

It is a super-2 number, since 2×10689608092 = 2285354422355868962, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1068960839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56567 + ... + 73059.

It is an arithmetic number, because the mean of its divisors is an integer number (78379488).

Almost surely, 21068960809 is an apocalyptic number.

It is an amenable number.

1068960809 is a deficient number, since it is larger than the sum of its proper divisors (185110999).

1068960809 is a wasteful number, since it uses less digits than its factorization.

1068960809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16744.

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 1068960809 is about 32694.9661110086. The cubic root of 1068960809 is about 1022.4778948798.

The spelling of 1068960809 in words is "one billion, sixty-eight million, nine hundred sixty thousand, eight hundred nine".

Divisors: 1 7 47 197 329 1379 9259 16493 64813 115451 775171 3249121 5426197 22743847 152708687 1068960809