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12227251630 = 25114714591621
BaseRepresentation
bin10110110001100110…
…10000110110101110
31011120010201201222111
423120303100312232
5200020134023010
65341144234234
7612000631636
oct133063206656
934503651874
1012227251630
115204a68140
122452a6b97a
1311cb270b49
1483dc956c6
154b86ae58a
hex2d8cd0dae

12227251630 has 64 divisors (see below), whose sum is σ = 24552668160. Its totient is φ = 4346006400.

The previous prime is 12227251607. The next prime is 12227251661. The reversal of 12227251630 is 3615272221.

It is a junction number, because it is equal to n+sod(n) for n = 12227251592 and 12227251601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7542220 + ... + 7543840.

It is an arithmetic number, because the mean of its divisors is an integer number (383635440).

Almost surely, 212227251630 is an apocalyptic number.

12227251630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12227251630 is an abundant number, since it is smaller than the sum of its proper divisors (12325416530).

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

12227251630 is a wasteful number, since it uses less digits than its factorization.

12227251630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3145.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 12227251630 in words is "twelve billion, two hundred twenty-seven million, two hundred fifty-one thousand, six hundred thirty".

Divisors: 1 2 5 10 11 22 47 55 94 110 235 470 517 1034 1459 1621 2585 2918 3242 5170 7295 8105 14590 16049 16210 17831 32098 35662 68573 76187 80245 89155 137146 152374 160490 178310 342865 380935 685730 754303 761870 838057 1508606 1676114 2365039 3771515 4190285 4730078 7543030 8380570 11825195 23650390 26015429 52030858 111156833 130077145 222313666 260154290 555784165 1111568330 1222725163 2445450326 6113625815 12227251630