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28498041 = 331131361
BaseRepresentation
bin110110010110…
…1100001111001
31222121211222000
41230231201321
524243414131
62454451213
7464141445
oct154554171
958554860
1028498041
11150a5000
129663b09
135b9a460
143adb825
15277dce6
hex1b2d879

28498041 has 64 divisors (see below), whose sum is σ = 50830080. Its totient is φ = 15681600.

The previous prime is 28498033. The next prime is 28498061. The reversal of 28498041 is 14089482.

It is not a de Polignac number, because 28498041 - 23 = 28498033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28497987 and 28498005.

It is not an unprimeable number, because it can be changed into a prime (28498061) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 467151 + ... + 467211.

It is an arithmetic number, because the mean of its divisors is an integer number (794220).

Almost surely, 228498041 is an apocalyptic number.

It is an amenable number.

28498041 is a deficient number, since it is larger than the sum of its proper divisors (22332039).

28498041 is a wasteful number, since it uses less digits than its factorization.

28498041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 28498041 is about 5338.3556457021. The cubic root of 28498041 is about 305.4487383665.

The spelling of 28498041 in words is "twenty-eight million, four hundred ninety-eight thousand, forty-one".

Divisors: 1 3 9 11 13 27 33 39 61 99 117 121 143 183 297 351 363 429 549 671 793 1089 1287 1331 1573 1647 2013 2379 3267 3861 3993 4719 6039 7137 7381 8723 11979 14157 17303 18117 21411 22143 26169 35937 42471 51909 66429 78507 81191 95953 155727 199287 235521 243573 287859 467181 730719 863577 1055483 2192157 2590731 3166449 9499347 28498041