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2031232201 = 11091831589
BaseRepresentation
bin111100100010010…
…0010010011001001
312020120010021202021
41321010202103021
513124443412301
6533320204441
7101223121525
oct17104422311
95216107667
102031232201
119526398a9
12488309721
13264a9115b
14153aa8d85
15bd4d18a1
hex791224c9

2031232201 has 4 divisors (see below), whose sum is σ = 2033064900. Its totient is φ = 2029399504.

The previous prime is 2031232193. The next prime is 2031232207. The reversal of 2031232201 is 1022321302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 882090000 + 1149142201 = 29700^2 + 33899^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031232201 - 23 = 2031232193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2031232207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914686 + ... + 916903.

It is an arithmetic number, because the mean of its divisors is an integer number (508266225).

Almost surely, 22031232201 is an apocalyptic number.

It is an amenable number.

2031232201 is a deficient number, since it is larger than the sum of its proper divisors (1832699).

2031232201 is a wasteful number, since it uses less digits than its factorization.

2031232201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832698.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2031232201 is about 45069.1934806914. The cubic root of 2031232201 is about 1266.4455556415.

Adding to 2031232201 its reverse (1022321302), we get a palindrome (3053553503).

The spelling of 2031232201 in words is "two billion, thirty-one million, two hundred thirty-two thousand, two hundred one".

Divisors: 1 1109 1831589 2031232201