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126332660 = 2256316633
BaseRepresentation
bin1111000011110…
…10111011110100
322210201100211102
413201322323310
5224320121120
620311425232
73062544536
oct741727364
9283640742
10126332660
1165347663
1236385218
132023346c
1412ac7856
15b156d75
hex787aef4

126332660 has 12 divisors (see below), whose sum is σ = 265298628. Its totient is φ = 50533056.

The previous prime is 126332639. The next prime is 126332669. The reversal of 126332660 is 66233621.

It can be written as a sum of positive squares in 2 ways, for example, as 94206436 + 32126224 = 9706^2 + 5668^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126332669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3158297 + ... + 3158336.

It is an arithmetic number, because the mean of its divisors is an integer number (22108219).

Almost surely, 2126332660 is an apocalyptic number.

126332660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126332660 is an abundant number, since it is smaller than the sum of its proper divisors (138965968).

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

126332660 is a wasteful number, since it uses less digits than its factorization.

126332660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6316642 (or 6316640 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 126332660 is about 11239.7802469621. The cubic root of 126332660 is about 501.7706025321.

The spelling of 126332660 in words is "one hundred twenty-six million, three hundred thirty-two thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 6316633 12633266 25266532 31583165 63166330 126332660