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28255008075 = 3527296918127
BaseRepresentation
bin11010010100001000…
…010011010101001011
32200221010210010110120
4122110020103111023
5430331240224300
620551414514323
72020120414560
oct322410232513
980833703416
1028255008075
1110a8a240848
1255866659a3
1328839c4ab8
1415207b0867
15b058393a0
hex69421354b

28255008075 has 48 divisors (see below), whose sum is σ = 53409438720. Its totient is φ = 12911512320.

The previous prime is 28255008037. The next prime is 28255008121. The reversal of 28255008075 is 57080055282.

It is not a de Polignac number, because 28255008075 - 26 = 28255008011 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1549662 + ... + 1567788.

It is an arithmetic number, because the mean of its divisors is an integer number (1112696640).

Almost surely, 228255008075 is an apocalyptic number.

28255008075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28255008075 is a deficient number, since it is larger than the sum of its proper divisors (25154430645).

28255008075 is a wasteful number, since it uses less digits than its factorization.

28255008075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21116 (or 21111 counting only the distinct ones).

The product of its (nonzero) digits is 224000, while the sum is 42.

The spelling of 28255008075 in words is "twenty-eight billion, two hundred fifty-five million, eight thousand, seventy-five".

Divisors: 1 3 5 7 15 21 25 35 75 105 175 525 2969 8907 14845 18127 20783 44535 54381 62349 74225 90635 103915 126889 222675 271905 311745 380667 453175 519575 634445 1359525 1558725 1903335 3172225 9516675 53819063 161457189 269095315 376733441 807285945 1130200323 1345476575 1883667205 4036429725 5651001615 9418336025 28255008075