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1201200201 = 32133466689
BaseRepresentation
bin100011110011000…
…1101110001001001
310002201021021220100
41013212031301021
54430001401301
6315105520013
741524014255
oct10746156111
93081237810
101201200201
11567056543
12296343009
13161b24866
14b5763265
15706c6286
hex4798dc49

1201200201 has 6 divisors (see below), whose sum is σ = 1735066970. Its totient is φ = 800800128.

The previous prime is 1201200199. The next prime is 1201200233. The reversal of 1201200201 is 1020021021.

It can be written as a sum of positive squares in only one way, i.e., 707294025 + 493906176 = 26595^2 + 22224^2 .

It is not a de Polignac number, because 1201200201 - 21 = 1201200199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 133466689 = 1201200201 / (1 + 2 + 0 + 1 + 2 + 0 + 0 + 2 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201200241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66733336 + ... + 66733353.

Almost surely, 21201200201 is an apocalyptic number.

It is an amenable number.

1201200201 is a deficient number, since it is larger than the sum of its proper divisors (533866769).

1201200201 is a wasteful number, since it uses less digits than its factorization.

1201200201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133466695 (or 133466692 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1201200201 is about 34658.3352312254. The cubic root of 1201200201 is about 1063.0127299903.

Adding to 1201200201 its reverse (1020021021), we get a palindrome (2221221222).

The spelling of 1201200201 in words is "one billion, two hundred one million, two hundred thousand, two hundred one".

Divisors: 1 3 9 133466689 400400067 1201200201