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12426230660 = 2251932700607
BaseRepresentation
bin10111001001010100…
…10011101110000100
31012002000010220220012
423210222103232010
5200422103340120
65413013125352
7616635134504
oct134452235604
935060126805
1012426230660
1152a7313018
1224a9629858
13123055b50c
1485c48da04
154cadb61c5
hex2e4a93b84

12426230660 has 24 divisors (see below), whose sum is σ = 27468510720. Its totient is φ = 4708887264.

The previous prime is 12426230651. The next prime is 12426230669. The reversal of 12426230660 is 6603262421.

It is an interprime number because it is at equal distance from previous prime (12426230651) and next prime (12426230669).

It is a super-2 number, since 2×124262306602 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12426230669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16349924 + ... + 16350683.

It is an arithmetic number, because the mean of its divisors is an integer number (1144521280).

Almost surely, 212426230660 is an apocalyptic number.

12426230660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12426230660 is an abundant number, since it is smaller than the sum of its proper divisors (15042280060).

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

12426230660 is a wasteful number, since it uses less digits than its factorization.

12426230660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32700635 (or 32700633 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 12426230660 in words is "twelve billion, four hundred twenty-six million, two hundred thirty thousand, six hundred sixty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 32700607 65401214 130802428 163503035 327006070 621311533 654012140 1242623066 2485246132 3106557665 6213115330 12426230660