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108672716818 = 21728910919381
BaseRepresentation
bin110010100110101100…
…1100001000000010010
3101101111120220000010201
41211031121201000102
53240030203414233
6121531253245414
710565003565121
oct1451531410022
9341446800121
10108672716818
11420a6a08666
121908a33386a
13a32b52b743
14538cbddab8
152c6081877d
hex194d661012

108672716818 has 48 divisors (see below), whose sum is σ = 176723137800. Its totient is φ = 50099005440.

The previous prime is 108672716797. The next prime is 108672716821. The reversal of 108672716818 is 818617276801.

It can be written as a sum of positive squares in 12 ways, for example, as 52604633449 + 56068083369 = 229357^2 + 236787^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5597488 + ... + 5616868.

Almost surely, 2108672716818 is an apocalyptic number.

108672716818 is a deficient number, since it is larger than the sum of its proper divisors (68050420982).

108672716818 is a wasteful number, since it uses less digits than its factorization.

108672716818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19615 (or 19598 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 55.

The spelling of 108672716818 in words is "one hundred eight billion, six hundred seventy-two million, seven hundred sixteen thousand, eight hundred eighteen".

Divisors: 1 2 17 34 89 109 178 218 289 578 1513 1853 3026 3706 9701 19381 19402 25721 31501 38762 51442 63002 164917 329477 329834 658954 1724909 2112529 2803589 3449818 4225058 5601109 5607178 11202218 29323453 35912993 58646906 71825986 188015081 376030162 498498701 610520881 996997402 1221041762 3196256377 6392512754 54336358409 108672716818