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12226304650 = 252779442181
BaseRepresentation
bin10110110001011111…
…01001101010001010
31011120001221121222011
423120233221222022
5200014413222100
65341112050134
7611656606030
oct133057515212
934501847864
1012226304650
11520448070a
12245269394a
1311caccbac1
1483daca550
154b8573bba
hex2d8be9a8a

12226304650 has 48 divisors (see below), whose sum is σ = 26318672640. Its totient is φ = 4138804800.

The previous prime is 12226304639. The next prime is 12226304663. The reversal of 12226304650 is 5640362221.

It is a super-2 number, since 2×122263046502 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 193441 + ... + 248740.

It is an arithmetic number, because the mean of its divisors is an integer number (548305680).

Almost surely, 212226304650 is an apocalyptic number.

12226304650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12226304650 is an abundant number, since it is smaller than the sum of its proper divisors (14092367990).

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

12226304650 is a wasteful number, since it uses less digits than its factorization.

12226304650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442279 (or 442274 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 12226304650 its reverse (5640362221), we get a palindrome (17866666871).

The spelling of 12226304650 in words is "twelve billion, two hundred twenty-six million, three hundred four thousand, six hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 79 158 175 350 395 553 790 1106 1975 2765 3950 5530 13825 27650 442181 884362 2210905 3095267 4421810 6190534 11054525 15476335 22109050 30952670 34932299 69864598 77381675 154763350 174661495 244526093 349322990 489052186 873307475 1222630465 1746614950 2445260930 6113152325 12226304650