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108918343443 = 37131723468723
BaseRepresentation
bin110010101110000001…
…0100000011100010011
3101102010201002010112010
41211130002200130103
53241031043442233
6122011510034003
710604045433540
oct1453402403423
9342121063463
10108918343443
1142212624578
1219138648903
13a36a39c640
1453b369bbc7
152c77186b63
hex195c0a0713

108918343443 has 32 divisors (see below), whose sum is σ = 189251790336. Its totient is φ = 54071935488.

The previous prime is 108918343423. The next prime is 108918343459. The reversal of 108918343443 is 344343819801.

It is not a de Polignac number, because 108918343443 - 25 = 108918343411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 108918343392 and 108918343401.

It is not an unprimeable number, because it can be changed into a prime (108918343423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11729721 + ... + 11739002.

It is an arithmetic number, because the mean of its divisors is an integer number (5914118448).

Almost surely, 2108918343443 is an apocalyptic number.

108918343443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

108918343443 is a deficient number, since it is larger than the sum of its proper divisors (80333446893).

108918343443 is a wasteful number, since it uses less digits than its factorization.

108918343443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23468763.

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 108918343443 in words is "one hundred eight billion, nine hundred eighteen million, three hundred forty-three thousand, four hundred forty-three".

Divisors: 1 3 7 13 17 21 39 51 91 119 221 273 357 663 1547 4641 23468723 70406169 164281061 305093399 398968291 492843183 915280197 1196904873 2135653793 2792778037 5186587783 6406961379 8378334111 15559763349 36306114481 108918343443