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8232505 = 517234211
BaseRepresentation
bin11111011001111000111001
3120111020212121
4133121320321
54101420010
6452241241
7126655321
oct37317071
916436777
108232505
114713226
122910221
131923208
141144281
15ac93da
hex7d9e39

8232505 has 16 divisors (see below), whose sum is σ = 10917504. Its totient is φ = 5927680.

The previous prime is 8232503. The next prime is 8232509. The reversal of 8232505 is 5052328.

It is not a de Polignac number, because 8232505 - 21 = 8232503 is a prime.

It is a Duffinian number.

8232505 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8232505.

It is not an unprimeable number, because it can be changed into a prime (8232503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151 + ... + 4060.

It is an arithmetic number, because the mean of its divisors is an integer number (682344).

Almost surely, 28232505 is an apocalyptic number.

8232505 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8232505 is a deficient number, since it is larger than the sum of its proper divisors (2684999).

8232505 is a wasteful number, since it uses less digits than its factorization.

8232505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4256.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 8232505 is about 2869.2342183935. The cubic root of 8232505 is about 201.9190686477.

The spelling of 8232505 in words is "eight million, two hundred thirty-two thousand, five hundred five".

Divisors: 1 5 17 23 85 115 391 1955 4211 21055 71587 96853 357935 484265 1646501 8232505