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2121030022 = 28911915899
BaseRepresentation
bin111111001101100…
…0101100110000110
312110211002111012111
41332123011212012
513320440430042
6550245011234
7103363312666
oct17633054606
95424074174
102121030022
119992a2281
124b23b3b1a
1327a572067
141619a21a6
15c631d517
hex7e6c5986

2121030022 has 8 divisors (see below), whose sum is σ = 3217293000. Its totient is φ = 1048599024.

The previous prime is 2121029987. The next prime is 2121030029. The reversal of 2121030022 is 2200301212.

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

It is a junction number, because it is equal to n+sod(n) for n = 2121029984 and 2121030011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121030029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5957772 + ... + 5958127.

It is an arithmetic number, because the mean of its divisors is an integer number (402161625).

Almost surely, 22121030022 is an apocalyptic number.

2121030022 is a deficient number, since it is larger than the sum of its proper divisors (1096262978).

2121030022 is a wasteful number, since it uses less digits than its factorization.

2121030022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11915990.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2121030022 is about 46054.6416987474. The cubic root of 2121030022 is about 1284.8396741639.

Adding to 2121030022 its reverse (2200301212), we get a palindrome (4321331234).

The spelling of 2121030022 in words is "two billion, one hundred twenty-one million, thirty thousand, twenty-two".

Divisors: 1 2 89 178 11915899 23831798 1060515011 2121030022