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15328630 = 251980677
BaseRepresentation
bin111010011110…
…010101110110
31001211202221001
4322132111312
512411004010
61304313514
7244201612
oct72362566
931752831
1015328630
11871a699
12517289a
1332390c5
142070342
15152bc3a
hexe9e576

15328630 has 16 divisors (see below), whose sum is σ = 29044080. Its totient is φ = 5808672.

The previous prime is 15328609. The next prime is 15328637. The reversal of 15328630 is 3682351.

15328630 = T72 + T73 + ... + T451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15328637) 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, 40149 + ... + 40528.

It is an arithmetic number, because the mean of its divisors is an integer number (1815255).

Almost surely, 215328630 is an apocalyptic number.

15328630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15328630 is a deficient number, since it is larger than the sum of its proper divisors (13715450).

15328630 is a wasteful number, since it uses less digits than its factorization.

15328630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80703.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 15328630 is about 3915.1794339468. The cubic root of 15328630 is about 248.4092596488.

The spelling of 15328630 in words is "fifteen million, three hundred twenty-eight thousand, six hundred thirty".

Divisors: 1 2 5 10 19 38 95 190 80677 161354 403385 806770 1532863 3065726 7664315 15328630