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11808016659 = 3219474613187
BaseRepresentation
bin10101111111101000…
…00000100100010011
31010110220212101201100
422333310000210103
5143140323013114
65231410435443
7565420325355
oct127764004423
933426771640
1011808016659
11500a35475a
122356592b83
13116245640a
148003250d5
1549199b909
hex2bfd00913

11808016659 has 48 divisors (see below), whose sum is σ = 18381242880. Its totient is φ = 7280902080.

The previous prime is 11808016657. The next prime is 11808016679. The reversal of 11808016659 is 95661080811.

It is not a de Polignac number, because 11808016659 - 21 = 11808016657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11808016657) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3703464 + ... + 3706650.

It is an arithmetic number, because the mean of its divisors is an integer number (382942560).

Almost surely, 211808016659 is an apocalyptic number.

11808016659 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11808016659 is a deficient number, since it is larger than the sum of its proper divisors (6573226221).

11808016659 is a wasteful number, since it uses less digits than its factorization.

11808016659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720 (or 3717 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The spelling of 11808016659 in words is "eleven billion, eight hundred eight million, sixteen thousand, six hundred fifty-nine".

Divisors: 1 3 9 19 47 57 141 171 423 461 893 1383 2679 3187 4149 8037 8759 9561 21667 26277 28683 60553 65001 78831 149789 181659 195003 411673 449367 544977 1235019 1348101 1469207 2845991 3705057 4407621 8537973 13222863 25613919 27914933 69052729 83744799 207158187 251234397 621474561 1312001851 3936005553 11808016659