[go: up one dir, main page]

Search a number
-
+
2140420120 = 235199268897
BaseRepresentation
bin111111110010100…
…0011100000011000
312112011120121102021
41333211003200120
513340421420440
6552220344224
7104020161616
oct17745034030
95464517367
102140420120
119a9236353
124b89a5074
132815a09a7
141643ac6b6
15c7d9d84a
hex7f943818

2140420120 has 32 divisors (see below), whose sum is σ = 4840164000. Its totient is φ = 851862528.

The previous prime is 2140420103. The next prime is 2140420133. The reversal of 2140420120 is 210240412.

It is a junction number, because it is equal to n+sod(n) for n = 2140420094 and 2140420103.

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, 126489 + ... + 142408.

It is an arithmetic number, because the mean of its divisors is an integer number (151255125).

Almost surely, 22140420120 is an apocalyptic number.

2140420120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2140420120 is an abundant number, since it is smaller than the sum of its proper divisors (2699743880).

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

2140420120 is a wasteful number, since it uses less digits than its factorization.

2140420120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269107 (or 269103 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2140420120 is about 46264.6746449167. The cubic root of 2140420120 is about 1288.7430658889.

Adding to 2140420120 its reverse (210240412), we get a palindrome (2350660532).

The spelling of 2140420120 in words is "two billion, one hundred forty million, four hundred twenty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 199 398 796 995 1592 1990 3980 7960 268897 537794 1075588 1344485 2151176 2688970 5377940 10755880 53510503 107021006 214042012 267552515 428084024 535105030 1070210060 2140420120