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2213420140 = 225281393847
BaseRepresentation
bin1000001111101110…
…0001110001101100
312201020221101121201
42003323201301230
514013113421030
61003345135244
7105564521641
oct20373416154
95636841551
102213420140
11a36466348
1251932a524
1329374cb79
1416dd71dc8
15ce4bd2ca
hex83ee1c6c

2213420140 has 24 divisors (see below), whose sum is σ = 4664735712. Its totient is φ = 882215040.

The previous prime is 2213420129. The next prime is 2213420149. The reversal of 2213420140 is 410243122.

2213420140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2213420149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191304 + ... + 202543.

It is an arithmetic number, because the mean of its divisors is an integer number (194363988).

Almost surely, 22213420140 is an apocalyptic number.

2213420140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2213420140 is an abundant number, since it is smaller than the sum of its proper divisors (2451315572).

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

2213420140 is a wasteful number, since it uses less digits than its factorization.

2213420140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394137 (or 394135 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2213420140 is about 47046.9992666908. Note that the first 3 decimals coincide. The cubic root of 2213420140 is about 1303.2306511959.

Adding to 2213420140 its reverse (410243122), we get a palindrome (2623663262).

The spelling of 2213420140 in words is "two billion, two hundred thirteen million, four hundred twenty thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 281 562 1124 1405 2810 5620 393847 787694 1575388 1969235 3938470 7876940 110671007 221342014 442684028 553355035 1106710070 2213420140