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28113050 = 2527471709
BaseRepresentation
bin110101100111…
…1100010011010
31221220021212002
41223033202122
524144104200
62442321002
7460646150
oct153174232
957807762
1028113050
1114961829
1294b9162
135a94154
143a3b3d0
152704bd5
hex1acf89a

28113050 has 48 divisors (see below), whose sum is σ = 61067520. Its totient is φ = 9428160.

The previous prime is 28113037. The next prime is 28113077. The reversal of 28113050 is 5031182.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15596 + ... + 17304.

It is an arithmetic number, because the mean of its divisors is an integer number (1272240).

Almost surely, 228113050 is an apocalyptic number.

28113050 is an abundant number, since it is smaller than the sum of its proper divisors (32954470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28113050 is a wasteful number, since it uses less digits than its factorization.

28113050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775 (or 1770 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 28113050 is about 5302.1740823930. The cubic root of 28113050 is about 304.0670226763.

It can be divided in two parts, 281 and 13050, that added together give a palindrome (13331).

The spelling of 28113050 in words is "twenty-eight million, one hundred thirteen thousand, fifty".

Divisors: 1 2 5 7 10 14 25 35 47 50 70 94 175 235 329 350 470 658 1175 1645 1709 2350 3290 3418 8225 8545 11963 16450 17090 23926 42725 59815 80323 85450 119630 160646 299075 401615 562261 598150 803230 1124522 2008075 2811305 4016150 5622610 14056525 28113050