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2120086045 = 57115506717
BaseRepresentation
bin111111001011101…
…1111001000011101
312110202022112022101
41332113133020131
513320220223140
6550212445101
7103352301610
oct17627371035
95422275271
102120086045
11998808030
124b2019791
1327a3014ac
141617d8177
15c61d399a
hex7e5df21d

2120086045 has 16 divisors (see below), whose sum is σ = 3171869568. Its totient is φ = 1321611840.

The previous prime is 2120086043. The next prime is 2120086127. The reversal of 2120086045 is 5406800212.

It is not a de Polignac number, because 2120086045 - 21 = 2120086043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120086043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2752974 + ... + 2753743.

It is an arithmetic number, because the mean of its divisors is an integer number (198241848).

Almost surely, 22120086045 is an apocalyptic number.

It is an amenable number.

2120086045 is a deficient number, since it is larger than the sum of its proper divisors (1051783523).

2120086045 is a wasteful number, since it uses less digits than its factorization.

2120086045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5506740.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 2120086045 is about 46044.3921123952. The cubic root of 2120086045 is about 1284.6490373722.

Adding to 2120086045 its reverse (5406800212), we get a palindrome (7526886257).

The spelling of 2120086045 in words is "two billion, one hundred twenty million, eighty-six thousand, forty-five".

Divisors: 1 5 7 11 35 55 77 385 5506717 27533585 38547019 60573887 192735095 302869435 424017209 2120086045