Search a number
-
+
109885000 = 235421977
BaseRepresentation
bin1101000110010…
…11011001001000
321122202201212211
412203023121020
5211112310000
614523114504
72503002301
oct643133110
9248681784
10109885000
1157033255
1230972a34
13199c4c14
14108457a8
1599a87ba
hex68cb648

109885000 has 40 divisors (see below), whose sum is σ = 257472270. Its totient is φ = 43952000.

The previous prime is 109884989. The next prime is 109885001. The reversal of 109885000 is 588901.

It can be written as a sum of positive squares in 5 ways, for example, as 933156 + 108951844 = 966^2 + 10438^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (109885001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5989 + ... + 15988.

Almost surely, 2109885000 is an apocalyptic number.

109885000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109885000 is an abundant number, since it is smaller than the sum of its proper divisors (147587270).

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

109885000 is an equidigital number, since it uses as much as digits as its factorization.

109885000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22003 (or 21984 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 109885000 is about 10482.6046381613. The cubic root of 109885000 is about 478.9749537624.

The spelling of 109885000 in words is "one hundred nine million, eight hundred eighty-five thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 625 1000 1250 2500 5000 21977 43954 87908 109885 175816 219770 439540 549425 879080 1098850 2197700 2747125 4395400 5494250 10988500 13735625 21977000 27471250 54942500 109885000