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109486240 = 255684289
BaseRepresentation
bin1101000011010…
…10000010100000
321122000110212221
412201222002200
5211012024430
614510400424
72466421603
oct641520240
9248013787
10109486240
11568906a6
1230800114
13198b5576
141078033a
15992a57a
hex686a0a0

109486240 has 24 divisors (see below), whose sum is σ = 258661620. Its totient is φ = 43794432.

The previous prime is 109486193. The next prime is 109486253. The reversal of 109486240 is 42684901.

It can be written as a sum of positive squares in 2 ways, for example, as 98962704 + 10523536 = 9948^2 + 3244^2 .

It is a junction number, because it is equal to n+sod(n) for n = 109486196 and 109486205.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341985 + ... + 342304.

Almost surely, 2109486240 is an apocalyptic number.

109486240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109486240 is an abundant number, since it is smaller than the sum of its proper divisors (149175380).

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

109486240 is an equidigital number, since it uses as much as digits as its factorization.

109486240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684304 (or 684296 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 109486240 is about 10463.5672693398. The cubic root of 109486240 is about 478.3948698756.

The spelling of 109486240 in words is "one hundred nine million, four hundred eighty-six thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 684289 1368578 2737156 3421445 5474312 6842890 10948624 13685780 21897248 27371560 54743120 109486240