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2120023124 = 221573375833
BaseRepresentation
bin111111001011100…
…1111110001010100
312110202012022222222
41332113033301110
513320211214444
6550211241512
7103351620302
oct17627176124
95422168888
102120023124
1199877482a
124b1ba9298
1327a2ab96b
141617bd272
15c61beeee
hex7e5cfc54

2120023124 has 12 divisors (see below), whose sum is σ = 3733672404. Its totient is φ = 1053259584.

The previous prime is 2120023123. The next prime is 2120023141. The reversal of 2120023124 is 4213200212.

It can be written as a sum of positive squares in 2 ways, for example, as 879715600 + 1240307524 = 29660^2 + 35218^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120023123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1687289 + ... + 1688544.

It is an arithmetic number, because the mean of its divisors is an integer number (311139367).

Almost surely, 22120023124 is an apocalyptic number.

It is an amenable number.

2120023124 is a deficient number, since it is larger than the sum of its proper divisors (1613649280).

2120023124 is a wasteful number, since it uses less digits than its factorization.

2120023124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3375994 (or 3375992 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2120023124 is about 46043.7088427941. The cubic root of 2120023124 is about 1284.6363284223.

Adding to 2120023124 its reverse (4213200212), we get a palindrome (6333223336).

The spelling of 2120023124 in words is "two billion, one hundred twenty million, twenty-three thousand, one hundred twenty-four".

Divisors: 1 2 4 157 314 628 3375833 6751666 13503332 530005781 1060011562 2120023124