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15327380 = 225766369
BaseRepresentation
bin111010011110…
…000010010100
31001211201012202
4322132002110
512410434010
61304304032
7244165145
oct72360224
931751182
1015327380
118719762
125172018
133238673
14206dacc
15152b6a5
hexe9e094

15327380 has 12 divisors (see below), whose sum is σ = 32187540. Its totient is φ = 6130944.

The previous prime is 15327373. The next prime is 15327383. The reversal of 15327380 is 8372351.

It can be written as a sum of positive squares in 2 ways, for example, as 9265936 + 6061444 = 3044^2 + 2462^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15327383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383165 + ... + 383204.

It is an arithmetic number, because the mean of its divisors is an integer number (2682295).

Almost surely, 215327380 is an apocalyptic number.

15327380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15327380 is an abundant number, since it is smaller than the sum of its proper divisors (16860160).

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

15327380 is a wasteful number, since it uses less digits than its factorization.

15327380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766378 (or 766376 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 15327380 is about 3915.0197956077. The cubic root of 15327380 is about 248.4025071424.

The spelling of 15327380 in words is "fifteen million, three hundred twenty-seven thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 766369 1532738 3065476 3831845 7663690 15327380