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28323675 = 345271197
BaseRepresentation
bin110110000001…
…0111101011011
31222021222210000
41230002331123
524222324200
62451024043
7462514212
oct154027533
958258700
1028323675
1114a95aa6
12959b023
135b38c93
143a94079
152747300
hex1b02f5b

28323675 has 60 divisors (see below), whose sum is σ = 53474256. Its totient is φ = 14817600.

The previous prime is 28323671. The next prime is 28323689. The reversal of 28323675 is 57632382.

It is not a de Polignac number, because 28323675 - 22 = 28323671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28323671) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 143677 + ... + 143873.

Almost surely, 228323675 is an apocalyptic number.

28323675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28323675 is a deficient number, since it is larger than the sum of its proper divisors (25150581).

28323675 is a wasteful number, since it uses less digits than its factorization.

28323675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 276 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 28323675 is about 5321.9991544531. Note that the first 3 decimals coincide. The cubic root of 28323675 is about 304.8244981549.

The spelling of 28323675 in words is "twenty-eight million, three hundred twenty-three thousand, six hundred seventy-five".

Divisors: 1 3 5 9 15 25 27 45 71 75 81 135 197 213 225 355 405 591 639 675 985 1065 1773 1775 1917 2025 2955 3195 4925 5319 5325 5751 8865 9585 13987 14775 15957 15975 26595 28755 41961 44325 47925 69935 79785 125883 132975 143775 209805 349675 377649 398925 629415 1049025 1132947 1888245 3147075 5664735 9441225 28323675