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28498976 = 251180963
BaseRepresentation
bin110110010110…
…1110000100000
31222121220020122
41230231300200
524243431401
62454455412
7464144252
oct154556040
958556218
1028498976
11150a5780
129664568
135b9a9cc
143adbcd2
15277e21b
hex1b2dc20

28498976 has 24 divisors (see below), whose sum is σ = 61208784. Its totient is φ = 12953920.

The previous prime is 28498969. The next prime is 28498979. The reversal of 28498976 is 67989482.

It is not an unprimeable number, because it can be changed into a prime (28498979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40130 + ... + 40833.

It is an arithmetic number, because the mean of its divisors is an integer number (2550366).

Almost surely, 228498976 is an apocalyptic number.

It is an amenable number.

28498976 is an abundant number, since it is smaller than the sum of its proper divisors (32709808).

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

28498976 is a wasteful number, since it uses less digits than its factorization.

28498976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80984 (or 80976 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 53.

The square root of 28498976 is about 5338.4432187671. The cubic root of 28498976 is about 305.4520788470.

The spelling of 28498976 in words is "twenty-eight million, four hundred ninety-eight thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 80963 161926 323852 647704 890593 1295408 1781186 2590816 3562372 7124744 14249488 28498976