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2201221230 = 235135644157
BaseRepresentation
bin1000001100110011…
…1111100001101110
312200101222121212020
42003030333201232
514002003034410
61002231451010
7105356033415
oct20314774156
95611877766
102201221230
11a2a5940aa
12515226a66
1329106b490
1416c4b847c
15cd3ada70
hex8333f86e

2201221230 has 32 divisors (see below), whose sum is σ = 5689311264. Its totient is φ = 541838976.

The previous prime is 2201221229. The next prime is 2201221241. The reversal of 2201221230 is 321221022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2821689 + ... + 2822468.

It is an arithmetic number, because the mean of its divisors is an integer number (177790977).

Almost surely, 22201221230 is an apocalyptic number.

2201221230 is an abundant number, since it is smaller than the sum of its proper divisors (3488090034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2201221230 is a wasteful number, since it uses less digits than its factorization.

2201221230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5644180.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2201221230 is about 46917.1741476402. The cubic root of 2201221230 is about 1300.8320570769.

Adding to 2201221230 its reverse (321221022), we get a palindrome (2522442252).

The spelling of 2201221230 in words is "two billion, two hundred one million, two hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 5644157 11288314 16932471 28220785 33864942 56441570 73374041 84662355 146748082 169324710 220122123 366870205 440244246 733740410 1100610615 2201221230