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120100200985 = 5172114966809
BaseRepresentation
bin110111111011010000…
…1111010001000011001
3102110222222201100102001
41233312201322020121
53431431122412420
6131101232041001
711451123602362
oct1576641721031
9373888640361
10120100200985
1146a30483656
121b339393161
13b42cb9b4ab
145b5478ab69
1531cdb99b0a
hex1bf687a219

120100200985 has 16 divisors (see below), whose sum is σ = 152607402000. Its totient is φ = 90422757376.

The previous prime is 120100200977. The next prime is 120100201043. The reversal of 120100200985 is 589002001021.

It can be written as a sum of positive squares in 8 ways, for example, as 20831726224 + 99268474761 = 144332^2 + 315069^2 .

It is not a de Polignac number, because 120100200985 - 23 = 120100200977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1764261 + ... + 1831069.

It is an arithmetic number, because the mean of its divisors is an integer number (9537962625).

Almost surely, 2120100200985 is an apocalyptic number.

It is an amenable number.

120100200985 is a deficient number, since it is larger than the sum of its proper divisors (32507201015).

120100200985 is a wasteful number, since it uses less digits than its factorization.

120100200985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87980.

The product of its (nonzero) digits is 1440, while the sum is 28.

The spelling of 120100200985 in words is "one hundred twenty billion, one hundred million, two hundred thousand, nine hundred eighty-five".

Divisors: 1 5 17 85 21149 66809 105745 334045 359533 1135753 1797665 5678765 1412943541 7064717705 24020040197 120100200985