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28153713 = 371340653
BaseRepresentation
bin110101101100…
…1011101110001
31221222100122010
41223121131301
524201404323
62443233133
7461205540
oct153313561
957870563
1028153713
111498a335
1295187a9
135aa9803
143a4c157
152711c93
hex1ad9771

28153713 has 8 divisors (see below), whose sum is σ = 42900928. Its totient is φ = 16087824.

The previous prime is 28153703. The next prime is 28153729. The reversal of 28153713 is 31735182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28153713 - 28 = 28153457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28153703) 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, 670306 + ... + 670347.

It is an arithmetic number, because the mean of its divisors is an integer number (5362616).

Almost surely, 228153713 is an apocalyptic number.

It is an amenable number.

28153713 is a deficient number, since it is larger than the sum of its proper divisors (14747215).

28153713 is a wasteful number, since it uses less digits than its factorization.

28153713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340663.

The product of its digits is 5040, while the sum is 30.

The square root of 28153713 is about 5306.0072559317. The cubic root of 28153713 is about 304.2135539237.

Adding to 28153713 its reverse (31735182), we get a palindrome (59888895).

The spelling of 28153713 in words is "twenty-eight million, one hundred fifty-three thousand, seven hundred thirteen".

Divisors: 1 3 7 21 1340653 4021959 9384571 28153713