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2121103201 = 7331991297
BaseRepresentation
bin111111001101101…
…0111011101100001
312110211020012120211
41332123113131201
513321000300301
6550250334121
7103364036230
oct17633273541
95424205524
102121103201
11999342258
124b242a341
1327a599469
141619c0b17
15c6335051
hex7e6d7761

2121103201 has 8 divisors (see below), whose sum is σ = 2424874880. Its totient is φ = 1817520768.

The previous prime is 2121103169. The next prime is 2121103207. The reversal of 2121103201 is 1023011212.

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

It is not a de Polignac number, because 2121103201 - 25 = 2121103169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121103207) 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, 22416 + ... + 68881.

It is an arithmetic number, because the mean of its divisors is an integer number (303109360).

Almost surely, 22121103201 is an apocalyptic number.

It is an amenable number.

2121103201 is a deficient number, since it is larger than the sum of its proper divisors (303771679).

2121103201 is an equidigital number, since it uses as much as digits as its factorization.

2121103201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94623.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2121103201 is about 46055.4361720742. The cubic root of 2121103201 is about 1284.8544503497.

Adding to 2121103201 its reverse (1023011212), we get a palindrome (3144114413).

The spelling of 2121103201 in words is "two billion, one hundred twenty-one million, one hundred three thousand, two hundred one".

Divisors: 1 7 3319 23233 91297 639079 303014743 2121103201