Search a number
-
+
103285855 = 520657171
BaseRepresentation
bin1100010100000…
…00010001011111
321012100110120001
412022000101133
5202420121410
614125435131
72362625641
oct612002137
9235313501
10103285855
1153336212
122a70baa7
13185242ba
14da08891
15910333a
hex628045f

103285855 has 4 divisors (see below), whose sum is σ = 123943032. Its totient is φ = 82628680.

The previous prime is 103285799. The next prime is 103285859. The reversal of 103285855 is 558582301.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 103285855 - 219 = 102761567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103285859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10328581 + ... + 10328590.

It is an arithmetic number, because the mean of its divisors is an integer number (30985758).

Almost surely, 2103285855 is an apocalyptic number.

103285855 is a deficient number, since it is larger than the sum of its proper divisors (20657177).

103285855 is an equidigital number, since it uses as much as digits as its factorization.

103285855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20657176.

The product of its (nonzero) digits is 48000, while the sum is 37.

The square root of 103285855 is about 10162.9648725163. The cubic root of 103285855 is about 469.1880579340.

The spelling of 103285855 in words is "one hundred three million, two hundred eighty-five thousand, eight hundred fifty-five".

Divisors: 1 5 20657171 103285855