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108685458785 = 5263313726347
BaseRepresentation
bin110010100111000101…
…0000111110101100001
3101101112110212100211102
41211032022013311201
53240041434140120
6121532430324145
710565220104531
oct1451612076541
9341473770742
10108685458785
1142103120912
1219092659655
13a331070377
1453907994c1
152c619d3d75
hex194e287d61

108685458785 has 16 divisors (see below), whose sum is σ = 130965158016. Its totient is φ = 86586866688.

The previous prime is 108685458769. The next prime is 108685458799. The reversal of 108685458785 is 587854586801.

It is a cyclic number.

It is not a de Polignac number, because 108685458785 - 24 = 108685458769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4111982 + ... + 4138328.

It is an arithmetic number, because the mean of its divisors is an integer number (8185322376).

Almost surely, 2108685458785 is an apocalyptic number.

It is an amenable number.

108685458785 is a deficient number, since it is larger than the sum of its proper divisors (22279699231).

108685458785 is a wasteful number, since it uses less digits than its factorization.

108685458785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29752.

The product of its (nonzero) digits is 86016000, while the sum is 65.

The spelling of 108685458785 in words is "one hundred eight billion, six hundred eighty-five million, four hundred fifty-eight thousand, seven hundred eighty-five".

Divisors: 1 5 263 1315 3137 15685 26347 131735 825031 4125155 6929261 34646305 82650539 413252695 21737091757 108685458785