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2121143201 = 29233931271
BaseRepresentation
bin111111001101110…
…0001001110100001
312110211022020110022
41332123201032201
513321003040301
6550251243225
7103364263652
oct17633411641
95424266408
102121143201
1199936a311
124b2449515
1327a5b1728
141619d1529
15c6341d1b
hex7e6e13a1

2121143201 has 8 divisors (see below), whose sum is σ = 2195294400. Its totient is φ = 2047059280.

The previous prime is 2121143183. The next prime is 2121143207. The reversal of 2121143201 is 1023411212.

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 2121143201 - 26 = 2121143137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2121143201.

It is not an unprimeable number, because it can be changed into a prime (2121143207) 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 7 ways as a sum of consecutive naturals, for example, 52196 + ... + 83466.

It is an arithmetic number, because the mean of its divisors is an integer number (274411800).

Almost surely, 22121143201 is an apocalyptic number.

It is an amenable number.

2121143201 is a deficient number, since it is larger than the sum of its proper divisors (74151199).

2121143201 is a wasteful number, since it uses less digits than its factorization.

2121143201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33639.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2121143201 is about 46055.8704292949. The cubic root of 2121143201 is about 1284.8625269416.

Adding to 2121143201 its reverse (1023411212), we get a palindrome (3144554413).

The spelling of 2121143201 in words is "two billion, one hundred twenty-one million, one hundred forty-three thousand, two hundred one".

Divisors: 1 29 2339 31271 67831 906859 73142869 2121143201