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28241073 = 3271133967
BaseRepresentation
bin110101110111…
…0110010110001
31222010210110200
41223232302301
524212203243
62445145413
7462021330
oct153566261
958123420
1028241073
1114a39a33
12955b269
135b0a4c3
143a71d17
15272cad3
hex1aeecb1

28241073 has 24 divisors (see below), whose sum is σ = 47044608. Its totient is φ = 15990912.

The previous prime is 28241071. The next prime is 28241107. The reversal of 28241073 is 37014282.

It is not a de Polignac number, because 28241073 - 21 = 28241071 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28241071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5136 + ... + 9102.

It is an arithmetic number, because the mean of its divisors is an integer number (1960192).

Almost surely, 228241073 is an apocalyptic number.

It is an amenable number.

28241073 is a deficient number, since it is larger than the sum of its proper divisors (18803535).

28241073 is a wasteful number, since it uses less digits than its factorization.

28241073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4093 (or 4090 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 28241073 is about 5314.2330584949. The cubic root of 28241073 is about 304.5278837497.

The spelling of 28241073 in words is "twenty-eight million, two hundred forty-one thousand, seventy-three".

Divisors: 1 3 7 9 21 63 113 339 791 1017 2373 3967 7119 11901 27769 35703 83307 249921 448271 1344813 3137897 4034439 9413691 28241073