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2120311230 = 235174157473
BaseRepresentation
bin111111001100001…
…0110000110111110
312110202201222012120
41332120112012332
513320244424410
6550221343410
7103354230252
oct17630260676
95422658176
102120311230
11998951234
124b2107b66
1327a37cb3b
14161856262
15c622a570
hex7e6161be

2120311230 has 32 divisors (see below), whose sum is σ = 5388086304. Its totient is φ = 532156416.

The previous prime is 2120311183. The next prime is 2120311241. The reversal of 2120311230 is 321130212.

2120311230 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×21203112302 = 8991439424128225800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2078227 + ... + 2079246.

It is an arithmetic number, because the mean of its divisors is an integer number (168377697).

Almost surely, 22120311230 is an apocalyptic number.

2120311230 is an abundant number, since it is smaller than the sum of its proper divisors (3267775074).

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

2120311230 is a wasteful number, since it uses less digits than its factorization.

2120311230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4157500.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2120311230 is about 46046.8373506802. The cubic root of 2120311230 is about 1284.6945187734.

Adding to 2120311230 its reverse (321130212), we get a palindrome (2441441442).

The spelling of 2120311230 in words is "two billion, one hundred twenty million, three hundred eleven thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 170 255 510 4157473 8314946 12472419 20787365 24944838 41574730 62362095 70677041 124724190 141354082 212031123 353385205 424062246 706770410 1060155615 2120311230