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28798035 = 357239181
BaseRepresentation
bin110110111011…
…0110001010011
32000012002110220
41231312301103
524333014120
62505124123
7466531200
oct155666123
960162426
1028798035
111528a432
129789643
135c73b76
143b78ca7
1527dcb40
hex1b76c53

28798035 has 24 divisors (see below), whose sum is σ = 53600976. Its totient is φ = 13164480.

The previous prime is 28798019. The next prime is 28798037. The reversal of 28798035 is 53089782.

It is not a de Polignac number, because 28798035 - 24 = 28798019 is a prime.

It is a super-2 number, since 2×287980352 = 1658653639722450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28798037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18856 + ... + 20325.

It is an arithmetic number, because the mean of its divisors is an integer number (2233374).

Almost surely, 228798035 is an apocalyptic number.

28798035 is a deficient number, since it is larger than the sum of its proper divisors (24802941).

28798035 is a wasteful number, since it uses less digits than its factorization.

28798035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39203 (or 39196 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 28798035 is about 5366.3800648109. The cubic root of 28798035 is about 306.5168015117.

The spelling of 28798035 in words is "twenty-eight million, seven hundred ninety-eight thousand, thirty-five".

Divisors: 1 3 5 7 15 21 35 49 105 147 245 735 39181 117543 195905 274267 587715 822801 1371335 1919869 4114005 5759607 9599345 28798035