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2120313230 = 257435313291
BaseRepresentation
bin111111001100001…
…0110100110001110
312110202202001221122
41332120112212032
513320300010410
6550221400542
7103354236140
oct17630264616
95422661848
102120313230
11998952792
124b2109152
1327a380a19
14161856c90
15c622ae55
hex7e61698e

2120313230 has 64 divisors (see below), whose sum is σ = 4547778048. Its totient is φ = 696608640.

The previous prime is 2120313199. The next prime is 2120313233. The reversal of 2120313230 is 323130212.

It is a junction number, because it is equal to n+sod(n) for n = 2120313199 and 2120313208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120313233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152885 + ... + 166175.

It is an arithmetic number, because the mean of its divisors is an integer number (71059032).

Almost surely, 22120313230 is an apocalyptic number.

2120313230 is an abundant number, since it is smaller than the sum of its proper divisors (2427464818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2120313230 is a wasteful number, since it uses less digits than its factorization.

2120313230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13401.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2120313230 is about 46046.8590676932. The cubic root of 2120313230 is about 1284.6949227059.

Adding to 2120313230 its reverse (323130212), we get a palindrome (2443443442).

The spelling of 2120313230 in words is "two billion, one hundred twenty million, three hundred thirteen thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 43 53 70 86 106 215 265 301 371 430 530 602 742 1505 1855 2279 3010 3710 4558 11395 13291 15953 22790 26582 31906 66455 79765 93037 132910 159530 186074 465185 571513 704423 930370 1143026 1408846 2857565 3522115 4000591 4930961 5715130 7044230 8001182 9861922 20002955 24654805 30290189 40005910 49309610 60580378 151450945 212031323 302901890 424062646 1060156615 2120313230