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1080688609 = 711131079609
BaseRepresentation
bin100000001101001…
…1111111111100001
32210022111200002001
41000122133333201
54203124013414
6255122524001
735531462440
oct10032377741
92708450061
101080688609
11505025390
12261b06601
13142b7bb20
14a3752d57
1564d1e074
hex4069ffe1

1080688609 has 16 divisors (see below), whose sum is σ = 1450995840. Its totient is φ = 777317760.

The previous prime is 1080688597. The next prime is 1080688699. The reversal of 1080688609 is 9068860801.

It is a cyclic number.

It is not a de Polignac number, because 1080688609 - 27 = 1080688481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1080688699) 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, 538804 + ... + 540805.

It is an arithmetic number, because the mean of its divisors is an integer number (90687240).

Almost surely, 21080688609 is an apocalyptic number.

It is an amenable number.

1080688609 is a deficient number, since it is larger than the sum of its proper divisors (370307231).

1080688609 is a wasteful number, since it uses less digits than its factorization.

1080688609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079640.

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 1080688609 is about 32873.8286331239. The cubic root of 1080688609 is about 1026.2035781275.

The spelling of 1080688609 in words is "one billion, eighty million, six hundred eighty-eight thousand, six hundred nine".

Divisors: 1 7 11 13 77 91 143 1001 1079609 7557263 11875699 14034917 83129893 98244419 154384087 1080688609