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12274480660 = 2251347209541
BaseRepresentation
bin10110110111001110…
…11011011000010100
31011200102121020000211
423123213123120110
5200114231340120
65345552415204
7613113235621
oct133347333024
934612536024
1012274480660
115229695aa2
122466847504
131207c98c10
1484626b348
154bc8dd25a
hex2db9db614

12274480660 has 24 divisors (see below), whose sum is σ = 27759210696. Its totient is φ = 4532115840.

The previous prime is 12274480649. The next prime is 12274480663. The reversal of 12274480660 is 6608447221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 171400464 + 12103080196 = 13092^2 + 110014^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12274480663) 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, 23604511 + ... + 23605030.

It is an arithmetic number, because the mean of its divisors is an integer number (1156633779).

Almost surely, 212274480660 is an apocalyptic number.

12274480660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12274480660 is an abundant number, since it is smaller than the sum of its proper divisors (15484730036).

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

12274480660 is a wasteful number, since it uses less digits than its factorization.

12274480660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47209563 (or 47209561 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 12274480660 in words is "twelve billion, two hundred seventy-four million, four hundred eighty thousand, six hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 47209541 94419082 188838164 236047705 472095410 613724033 944190820 1227448066 2454896132 3068620165 6137240330 12274480660