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2002022201 = 9192178479
BaseRepresentation
bin111011101010100…
…0110111100111001
312011112011021011102
41313111012330321
513100004202301
6530354141145
7100416623264
oct16725067471
95145137142
102002022201
119380a8a03
1247a5817b5
1325ba0492a
1414dc63cdb
15bab61b6b
hex77546f39

2002022201 has 4 divisors (see below), whose sum is σ = 2004201600. Its totient is φ = 1999842804.

The previous prime is 2002022179. The next prime is 2002022207. The reversal of 2002022201 is 1022202002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2002022201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002022207) 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 3 ways as a sum of consecutive naturals, for example, 1088321 + ... + 1090158.

It is an arithmetic number, because the mean of its divisors is an integer number (501050400).

Almost surely, 22002022201 is an apocalyptic number.

It is an amenable number.

2002022201 is a deficient number, since it is larger than the sum of its proper divisors (2179399).

2002022201 is an equidigital number, since it uses as much as digits as its factorization.

2002022201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179398.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2002022201 is about 44743.9627324179. The cubic root of 2002022201 is about 1260.3455424600.

Adding to 2002022201 its reverse (1022202002), we get a palindrome (3024224203).

The spelling of 2002022201 in words is "two billion, two million, twenty-two thousand, two hundred one".

Divisors: 1 919 2178479 2002022201