Search a number
-
+
1201404213 = 321091224673
BaseRepresentation
bin100011110011011…
…1111100100110101
310002201122122202100
41013212333210311
54430024413323
6315114132313
741525524122
oct10746774465
93081578670
101201404213
11567185849
12296421099
13161b96689
14b57b7749
1570716943
hex479bf935

1201404213 has 12 divisors (see below), whose sum is σ = 1751283820. Its totient is φ = 793587456.

The previous prime is 1201404203. The next prime is 1201404223. The reversal of 1201404213 is 3124041021.

1201404213 is a `hidden beast` number, since 1 + 201 + 40 + 421 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (1201404203) and next prime (1201404223).

It can be written as a sum of positive squares in 2 ways, for example, as 277122609 + 924281604 = 16647^2 + 30402^2 .

It is not a de Polignac number, because 1201404213 - 212 = 1201400117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201404203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 611356 + ... + 613317.

Almost surely, 21201404213 is an apocalyptic number.

It is an amenable number.

1201404213 is a deficient number, since it is larger than the sum of its proper divisors (549879607).

1201404213 is a wasteful number, since it uses less digits than its factorization.

1201404213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224788 (or 1224785 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1201404213 is about 34661.2782943734. The cubic root of 1201404213 is about 1063.0729073242.

Adding to 1201404213 its reverse (3124041021), we get a palindrome (4325445234).

The spelling of 1201404213 in words is "one billion, two hundred one million, four hundred four thousand, two hundred thirteen".

Divisors: 1 3 9 109 327 981 1224673 3674019 11022057 133489357 400468071 1201404213