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28300842 = 2321983997
BaseRepresentation
bin110101111110…
…1011000101010
31222020211110100
41223331120222
524221111332
62450330230
7462360513
oct153753052
958224410
1028300842
1114a7a929
129589976
135b2b77b
143a89a0a
15274067c
hex1afd62a

28300842 has 48 divisors (see below), whose sum is σ = 65388960. Its totient is φ = 8820576.

The previous prime is 28300777. The next prime is 28300891. The reversal of 28300842 is 24800382.

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, 27888 + ... + 28884.

It is an arithmetic number, because the mean of its divisors is an integer number (1362270).

Almost surely, 228300842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28300842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32694480).

28300842 is an abundant number, since it is smaller than the sum of its proper divisors (37088118).

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

28300842 is a wasteful number, since it uses less digits than its factorization.

28300842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107 (or 1104 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 28300842 is about 5319.8535694134. The cubic root of 28300842 is about 304.7425651798.

The spelling of 28300842 in words is "twenty-eight million, three hundred thousand, eight hundred forty-two".

Divisors: 1 2 3 6 9 18 19 38 57 83 114 166 171 249 342 498 747 997 1494 1577 1994 2991 3154 4731 5982 8973 9462 14193 17946 18943 28386 37886 56829 82751 113658 165502 170487 248253 340974 496506 744759 1489518 1572269 3144538 4716807 9433614 14150421 28300842