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103285805 = 5719155317
BaseRepresentation
bin1100010100000…
…00010000101101
321012100110111012
412022000100231
5202420121210
614125435005
72362625540
oct612002055
9235313435
10103285805
1153336177
122a70ba65
131852427c
14da08857
159103305
hex628042d

103285805 has 16 divisors (see below), whose sum is σ = 149105280. Its totient is φ = 67096512.

The previous prime is 103285799. The next prime is 103285859. The reversal of 103285805 is 508582301.

It is a happy number.

It is not a de Polignac number, because 103285805 - 212 = 103281709 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76994 + ... + 78323.

It is an arithmetic number, because the mean of its divisors is an integer number (9319080).

Almost surely, 2103285805 is an apocalyptic number.

It is an amenable number.

103285805 is a deficient number, since it is larger than the sum of its proper divisors (45819475).

103285805 is a wasteful number, since it uses less digits than its factorization.

103285805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155348.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 103285805 is about 10162.9624126039. The cubic root of 103285805 is about 469.1879822237.

The spelling of 103285805 in words is "one hundred three million, two hundred eighty-five thousand, eight hundred five".

Divisors: 1 5 7 19 35 95 133 665 155317 776585 1087219 2951023 5436095 14755115 20657161 103285805