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106805418 = 2317800903
BaseRepresentation
bin1100101110110…
…11100010101010
321102222021111020
412113123202222
5204320233133
614333113310
72434555026
oct627334252
9242867436
10106805418
115531a545
122b928836
1319187295
1410283386
15959b0b3
hex65db8aa

106805418 has 8 divisors (see below), whose sum is σ = 213610848. Its totient is φ = 35601804.

The previous prime is 106805417. The next prime is 106805423. The reversal of 106805418 is 814508601.

It is a sphenic number, since it is the product of 3 distinct primes.

106805418 is an admirable number.

It is a super-2 number, since 2×1068054182 = 22814794628309448, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (106805411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8900446 + ... + 8900457.

It is an arithmetic number, because the mean of its divisors is an integer number (26701356).

Almost surely, 2106805418 is an apocalyptic number.

106805418 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

106805418 is a wasteful number, since it uses less digits than its factorization.

106805418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17800908.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 106805418 is about 10334.6706769011. The cubic root of 106805418 is about 474.4579863704.

The spelling of 106805418 in words is "one hundred six million, eight hundred five thousand, four hundred eighteen".

Divisors: 1 2 3 6 17800903 35601806 53402709 106805418