Search a number
-
+
1242201 = 31923137
BaseRepresentation
bin100101111010001011001
32100002222110
410233101121
5304222301
642342533
713362402
oct4572131
92302873
101242201
11779314
124baa49
1334653c
142449a9
151980d6
hex12f459

1242201 has 24 divisors (see below), whose sum is σ = 1853184. Its totient is φ = 738720.

The previous prime is 1242193. The next prime is 1242217. The reversal of 1242201 is 1022421.

It is not a de Polignac number, because 1242201 - 23 = 1242193 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1242221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33555 + ... + 33591.

It is an arithmetic number, because the mean of its divisors is an integer number (77216).

21242201 is an apocalyptic number.

It is an amenable number.

1242201 is a deficient number, since it is larger than the sum of its proper divisors (610983).

1242201 is a wasteful number, since it uses less digits than its factorization.

1242201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1242201 is about 1114.5407125807. The cubic root of 1242201 is about 107.4972344700.

Adding to 1242201 its reverse (1022421), we get a palindrome (2264622).

The spelling of 1242201 in words is "one million, two hundred forty-two thousand, two hundred one".

Divisors: 1 3 19 31 37 57 93 111 361 589 703 1083 1147 1767 2109 3441 11191 13357 21793 33573 40071 65379 414067 1242201