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28715703 = 3173141443
BaseRepresentation
bin110110110001…
…0101010110111
32000000220112120
41231202222313
524322400303
62503251023
7466036152
oct155425267
960026476
1028715703
1115233595
129749a73
135c45553
143b56c99
1527c3553
hex1b62ab7

28715703 has 32 divisors (see below), whose sum is σ = 42964992. Its totient is φ = 16972800.

The previous prime is 28715699. The next prime is 28715711. The reversal of 28715703 is 30751782.

It is not a de Polignac number, because 28715703 - 22 = 28715699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28715003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64600 + ... + 65042.

It is an arithmetic number, because the mean of its divisors is an integer number (1342656).

Almost surely, 228715703 is an apocalyptic number.

28715703 is a deficient number, since it is larger than the sum of its proper divisors (14249289).

28715703 is a wasteful number, since it uses less digits than its factorization.

28715703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 28715703 is about 5358.7034812537. The cubic root of 28715703 is about 306.2244177992.

The spelling of 28715703 in words is "twenty-eight million, seven hundred fifteen thousand, seven hundred three".

Divisors: 1 3 17 31 41 51 93 123 443 527 697 1271 1329 1581 2091 3813 7531 13733 18163 21607 22593 41199 54489 64821 233461 308771 563053 700383 926313 1689159 9571901 28715703