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28998246 = 237168071
BaseRepresentation
bin110111010011…
…1101001100110
32000120021010010
41232213221212
524410420441
62513311050
7501323664
oct156475146
960507103
1028998246
11154068a2
129865486
136014034
143bcbc34
15282c116
hex1ba7a66

28998246 has 16 divisors (see below), whose sum is σ = 58814208. Its totient is φ = 9529800.

The previous prime is 28998227. The next prime is 28998257. The reversal of 28998246 is 64289982.

It is a junction number, because it is equal to n+sod(n) for n = 28998195 and 28998204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33610 + ... + 34461.

It is an arithmetic number, because the mean of its divisors is an integer number (3675888).

Almost surely, 228998246 is an apocalyptic number.

28998246 is an abundant number, since it is smaller than the sum of its proper divisors (29815962).

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

28998246 is a wasteful number, since it uses less digits than its factorization.

28998246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68147.

The product of its digits is 497664, while the sum is 48.

The square root of 28998246 is about 5385.0019498604. The cubic root of 28998246 is about 307.2254883705.

Subtracting from 28998246 its product of digits (497664), we obtain a palindrome (28500582).

The spelling of 28998246 in words is "twenty-eight million, nine hundred ninety-eight thousand, two hundred forty-six".

Divisors: 1 2 3 6 71 142 213 426 68071 136142 204213 408426 4833041 9666082 14499123 28998246