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12242005240 = 2351481206651
BaseRepresentation
bin10110110011010111…
…00010110011111000
31011121011111022010111
423121223202303320
5200032423131430
65342432354104
7612240220243
oct133153426370
934534438114
1012242005240
115212324803
1224579a5934
1312013382aa
14841c1625a
154b9b25c2a
hex2d9ae2cf8

12242005240 has 32 divisors (see below), whose sum is σ = 27563243760. Its totient is φ = 4893472000.

The previous prime is 12242005211. The next prime is 12242005249. The reversal of 12242005240 is 4250024221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12242005249) 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 7 ways as a sum of consecutive naturals, for example, 44086 + ... + 162565.

Almost surely, 212242005240 is an apocalyptic number.

12242005240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12242005240 is an abundant number, since it is smaller than the sum of its proper divisors (15321238520).

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

12242005240 is a wasteful number, since it uses less digits than its factorization.

12242005240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208143 (or 208139 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

Adding to 12242005240 its reverse (4250024221), we get a palindrome (16492029461).

The spelling of 12242005240 in words is "twelve billion, two hundred forty-two million, five thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 1481 2962 5924 7405 11848 14810 29620 59240 206651 413302 826604 1033255 1653208 2066510 4133020 8266040 306050131 612100262 1224200524 1530250655 2448401048 3060501310 6121002620 12242005240