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12262831890 = 2351424928687
BaseRepresentation
bin10110110101110101…
…11111011100010010
31011122121200101220220
423122322333130102
5200103241110030
65344455013510
7612612231321
oct133272773422
934577611826
1012262831890
11522305a111
12246296a296
13120574aa5a
148448b80b8
154bb88ba10
hex2daebf712

12262831890 has 32 divisors (see below), whose sum is σ = 29433888000. Its totient is φ = 3269745024.

The previous prime is 12262831849. The next prime is 12262831897. The reversal of 12262831890 is 9813826221.

It is not an unprimeable number, because it can be changed into a prime (12262831897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413127 + ... + 441813.

It is an arithmetic number, because the mean of its divisors is an integer number (919809000).

Almost surely, 212262831890 is an apocalyptic number.

12262831890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12262831890 is an abundant number, since it is smaller than the sum of its proper divisors (17171056110).

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

12262831890 is a wasteful number, since it uses less digits than its factorization.

12262831890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42946.

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 12262831890 in words is "twelve billion, two hundred sixty-two million, eight hundred thirty-one thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 14249 28498 28687 42747 57374 71245 85494 86061 142490 143435 172122 213735 286870 427470 430305 860610 408761063 817522126 1226283189 2043805315 2452566378 4087610630 6131415945 12262831890