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28494368 = 257127207
BaseRepresentation
bin110110010110…
…0101000100000
31222121122220222
41230230220200
524243304433
62454422212
7464124650
oct154545040
958548828
1028494368
11150a2271
129661968
135b98896
143ada360
15277cb98
hex1b2ca20

28494368 has 24 divisors (see below), whose sum is σ = 64112832. Its totient is φ = 12211776.

The previous prime is 28494343. The next prime is 28494371. The reversal of 28494368 is 86349482.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63380 + ... + 63827.

It is an arithmetic number, because the mean of its divisors is an integer number (2671368).

Almost surely, 228494368 is an apocalyptic number.

28494368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28494368 is an abundant number, since it is smaller than the sum of its proper divisors (35618464).

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

28494368 is a wasteful number, since it uses less digits than its factorization.

28494368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127224 (or 127216 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The square root of 28494368 is about 5338.0116148244. The cubic root of 28494368 is about 305.4356151087.

The spelling of 28494368 in words is "twenty-eight million, four hundred ninety-four thousand, three hundred sixty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 127207 254414 508828 890449 1017656 1780898 2035312 3561796 4070624 7123592 14247184 28494368