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2120270 = 251491423
BaseRepresentation
bin1000000101101001001110
310222201110112
420011221032
51020322040
6113240022
724010355
oct10055116
93881415
102120270
111218a99
12863012
135930c9
143d299c
152bd365
hex205a4e

2120270 has 16 divisors (see below), whose sum is σ = 3844800. Its totient is φ = 841824.

The previous prime is 2120269. The next prime is 2120297. The reversal of 2120270 is 720212.

It is a Curzon 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, 779 + ... + 2201.

It is an arithmetic number, because the mean of its divisors is an integer number (240300).

22120270 is an apocalyptic number.

2120270 is a deficient number, since it is larger than the sum of its proper divisors (1724530).

2120270 is a wasteful number, since it uses less digits than its factorization.

2120270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 2120270 is about 1456.1146932848. The cubic root of 2120270 is about 128.4686191647.

Adding to 2120270 its reverse (720212), we get a palindrome (2840482).

The spelling of 2120270 in words is "two million, one hundred twenty thousand, two hundred seventy".

Divisors: 1 2 5 10 149 298 745 1423 1490 2846 7115 14230 212027 424054 1060135 2120270