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28750059 = 351319479
BaseRepresentation
bin110110110101…
…1000011101011
32000002122200000
41231223003223
524330000214
62504114043
7466241262
oct155530353
960078600
1028750059
1115257388
129765923
135c58090
143b655d9
1527cd809
hex1b6b0eb

28750059 has 48 divisors (see below), whose sum is σ = 48921600. Its totient is φ = 16726176.

The previous prime is 28750031. The next prime is 28750067. The reversal of 28750059 is 95005782.

It is not a de Polignac number, because 28750059 - 29 = 28749547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28750019) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59782 + ... + 60260.

It is an arithmetic number, because the mean of its divisors is an integer number (1019200).

Almost surely, 228750059 is an apocalyptic number.

28750059 is a deficient number, since it is larger than the sum of its proper divisors (20171541).

28750059 is a wasteful number, since it uses less digits than its factorization.

28750059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526 (or 514 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 28750059 is about 5361.9081491574. The cubic root of 28750059 is about 306.3464933199.

The spelling of 28750059 in words is "twenty-eight million, seven hundred fifty thousand, fifty-nine".

Divisors: 1 3 9 13 19 27 39 57 81 117 171 243 247 351 479 513 741 1053 1437 1539 2223 3159 4311 4617 6227 6669 9101 12933 18681 20007 27303 38799 56043 60021 81909 116397 118313 168129 245727 354939 504387 737181 1064817 1513161 2211543 3194451 9583353 28750059