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2420201 = 71931587
BaseRepresentation
bin1001001110110111101001
311112221220002
421032313221
51104421301
6123512345
726366660
oct11166751
94487802
102420201
111403373
129886b5
13669794
1446ddd7
1532c16b
hex24ede9

2420201 has 16 divisors (see below), whose sum is σ = 3010560. Its totient is φ = 1898640.

The previous prime is 2420179. The next prime is 2420213. The reversal of 2420201 is 1020242.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2420201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2420251) 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 15 ways as a sum of consecutive naturals, for example, 3830 + ... + 4416.

It is an arithmetic number, because the mean of its divisors is an integer number (188160).

22420201 is an apocalyptic number.

It is an amenable number.

2420201 is a deficient number, since it is larger than the sum of its proper divisors (590359).

2420201 is a wasteful number, since it uses less digits than its factorization.

2420201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2420201 is about 1555.6995211158. The cubic root of 2420201 is about 134.2611858345.

Adding to 2420201 its reverse (1020242), we get a palindrome (3440443).

The spelling of 2420201 in words is "two million, four hundred twenty thousand, two hundred one".

Divisors: 1 7 19 31 133 217 587 589 4109 4123 11153 18197 78071 127379 345743 2420201