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2102111201 = 43106345989
BaseRepresentation
bin111110101001011…
…1010101111100001
312102111111022110102
41331102322233201
513301120024301
6544331312145
7103043436041
oct17522725741
95374438412
102102111201
11989650293
124a7bab655
13276679aa8
1415d279721
15c4832b6b
hex7d4babe1

2102111201 has 8 divisors (see below), whose sum is σ = 2153067840. Its totient is φ = 2051248752.

The previous prime is 2102111191. The next prime is 2102111267. The reversal of 2102111201 is 1021112012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2102111201 - 210 = 2102110177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102111101) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 22715 + ... + 68703.

It is an arithmetic number, because the mean of its divisors is an integer number (269133480).

Almost surely, 22102111201 is an apocalyptic number.

It is an amenable number.

2102111201 is a deficient number, since it is larger than the sum of its proper divisors (50956639).

2102111201 is a wasteful number, since it uses less digits than its factorization.

2102111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47095.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 2102111201 is about 45848.7862543819. The cubic root of 2102111201 is about 1281.0081577694.

Adding to 2102111201 its reverse (1021112012), we get a palindrome (3123223213).

It can be divided in two parts, 2 and 102111201, that multiplied together give a palindrome (204222402).

The spelling of 2102111201 in words is "two billion, one hundred two million, one hundred eleven thousand, two hundred one".

Divisors: 1 43 1063 45709 45989 1977527 48886307 2102111201