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2102120214 = 231947392333
BaseRepresentation
bin111110101001011…
…1100111100010110
312102111111202211020
41331102330330112
513301120321324
6544331422010
7103043504235
oct17522747426
95374452736
102102120214
11989657037
124a7bb4906
13276680c1c
1415d27cb1c
15c4835679
hex7d4bcf16

2102120214 has 32 divisors (see below), whose sum is σ = 4519687680. Its totient is φ = 649701792.

The previous prime is 2102120201. The next prime is 2102120221. The reversal of 2102120214 is 4120212012.

It is a junction number, because it is equal to n+sod(n) for n = 2102120193 and 2102120202.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 190809 + ... + 201524.

It is an arithmetic number, because the mean of its divisors is an integer number (141240240).

Almost surely, 22102120214 is an apocalyptic number.

2102120214 is an abundant number, since it is smaller than the sum of its proper divisors (2417567466).

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

2102120214 is a wasteful number, since it uses less digits than its factorization.

2102120214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392404.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2102120214 is about 45848.8845447738. The cubic root of 2102120214 is about 1281.0099885812.

Adding to 2102120214 its reverse (4120212012), we get a palindrome (6222332226).

The spelling of 2102120214 in words is "two billion, one hundred two million, one hundred twenty thousand, two hundred fourteen".

Divisors: 1 2 3 6 19 38 47 57 94 114 141 282 893 1786 2679 5358 392333 784666 1176999 2353998 7454327 14908654 18439651 22362981 36879302 44725962 55318953 110637906 350353369 700706738 1051060107 2102120214