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201225130 = 25411633011
BaseRepresentation
bin10111111111001…
…11001110101010
3112000122021222121
423333213032222
5403003201010
631544541454
74662246121
oct1377471652
9460567877
10201225130
11a364a467
125748188a
13328c5b32
141ca20ab8
15129ec3da
hexbfe73aa

201225130 has 32 divisors (see below), whose sum is σ = 373439808. Its totient is φ = 78019200.

The previous prime is 201225097. The next prime is 201225133. The reversal of 201225130 is 31522102.

It is not an unprimeable number, because it can be changed into a prime (201225133) 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 15 ways as a sum of consecutive naturals, for example, 65325 + ... + 68335.

It is an arithmetic number, because the mean of its divisors is an integer number (11669994).

Almost surely, 2201225130 is an apocalyptic number.

201225130 is a deficient number, since it is larger than the sum of its proper divisors (172214678).

201225130 is a wasteful number, since it uses less digits than its factorization.

201225130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3222.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 201225130 is about 14185.3843797058. The cubic root of 201225130 is about 585.9952183095.

Adding to 201225130 its reverse (31522102), we get a palindrome (232747232).

It can be divided in two parts, 20122 and 5130, that added together give a palindrome (25252).

The spelling of 201225130 in words is "two hundred one million, two hundred twenty-five thousand, one hundred thirty".

Divisors: 1 2 5 10 41 82 163 205 326 410 815 1630 3011 6022 6683 13366 15055 30110 33415 66830 123451 246902 490793 617255 981586 1234510 2453965 4907930 20122513 40245026 100612565 201225130