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120105085 = 5171413001
BaseRepresentation
bin1110010100010…
…10100001111101
322100222222012111
413022022201331
5221221330320
615530134021
72655606412
oct712124175
9270888174
10120105085
1161883801
1234281311
131bb629c9
1411d46109
15a826a5a
hex728a87d

120105085 has 8 divisors (see below), whose sum is σ = 152604216. Its totient is φ = 90432000.

The previous prime is 120105079. The next prime is 120105143. The reversal of 120105085 is 580501021.

It can be written as a sum of positive squares in 4 ways, for example, as 6320196 + 113784889 = 2514^2 + 10667^2 .

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

It is not a de Polignac number, because 120105085 - 211 = 120103037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706416 + ... + 706585.

It is an arithmetic number, because the mean of its divisors is an integer number (19075527).

Almost surely, 2120105085 is an apocalyptic number.

It is an amenable number.

120105085 is a deficient number, since it is larger than the sum of its proper divisors (32499131).

120105085 is a wasteful number, since it uses less digits than its factorization.

120105085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413023.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 120105085 is about 10959.2465525692. The cubic root of 120105085 is about 493.3863516897.

The spelling of 120105085 in words is "one hundred twenty million, one hundred five thousand, eighty-five".

Divisors: 1 5 17 85 1413001 7065005 24021017 120105085