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1201420202 = 2821731681
BaseRepresentation
bin100011110011100…
…0011011110101010
310002201200110200112
41013213003132222
54430030421302
6315114334322
741525621543
oct10747033652
93081613615
101201420202
11567196864
1229642a3a2
13161ba0a38
14b57bd4ca
157071b552
hex479c37aa

1201420202 has 8 divisors (see below), whose sum is σ = 1804327812. Its totient is φ = 599977600.

The previous prime is 1201420201. The next prime is 1201420219. The reversal of 1201420202 is 2020241021.

It can be written as a sum of positive squares in 2 ways, for example, as 948578401 + 252841801 = 30799^2 + 15901^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1201420201) 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 3 ways as a sum of consecutive naturals, for example, 364199 + ... + 367482.

Almost surely, 21201420202 is an apocalyptic number.

1201420202 is a deficient number, since it is larger than the sum of its proper divisors (602907610).

1201420202 is an equidigital number, since it uses as much as digits as its factorization.

1201420202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732504.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1201420202 is about 34661.5089400332. The cubic root of 1201420202 is about 1063.0776233049.

Adding to 1201420202 its reverse (2020241021), we get a palindrome (3221661223).

The spelling of 1201420202 in words is "one billion, two hundred one million, four hundred twenty thousand, two hundred two".

Divisors: 1 2 821 1642 731681 1463362 600710101 1201420202