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2002031201 = 2359384857
BaseRepresentation
bin111011101010100…
…1001001001100001
312011112011201111202
41313111021021201
513100004444301
6530354250545
7100416661442
oct16725111141
95145151452
102002031201
11938104745
1247a586a55
1325ba08a61
1414dc672c9
15bab6466b
hex77549261

2002031201 has 4 divisors (see below), whose sum is σ = 2002139652. Its totient is φ = 2001922752.

The previous prime is 2002031183. The next prime is 2002031219. The reversal of 2002031201 is 1021302002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (2002031183) and next prime (2002031219).

It can be written as a sum of positive squares in 2 ways, for example, as 349690000 + 1652341201 = 18700^2 + 40649^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002031201 - 230 = 928289377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002034201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18836 + ... + 66021.

It is an arithmetic number, because the mean of its divisors is an integer number (500534913).

Almost surely, 22002031201 is an apocalyptic number.

It is an amenable number.

2002031201 is a deficient number, since it is larger than the sum of its proper divisors (108451).

2002031201 is an equidigital number, since it uses as much as digits as its factorization.

2002031201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108450.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2002031201 is about 44744.0633045324. The cubic root of 2002031201 is about 1260.3474310659.

Adding to 2002031201 its reverse (1021302002), we get a palindrome (3023333203).

The spelling of 2002031201 in words is "two billion, two million, thirty-one thousand, two hundred one".

Divisors: 1 23593 84857 2002031201