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101485 = 520297
BaseRepresentation
bin11000110001101101
312011012201
4120301231
511221420
62101501
7601606
oct306155
9164181
10101485
116a27a
124a891
1337267
1428dad
152010a
hex18c6d

101485 has 4 divisors (see below), whose sum is σ = 121788. Its totient is φ = 81184.

The previous prime is 101483. The next prime is 101489. The reversal of 101485 is 584101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 584101 = 783443.

It can be written as a sum of positive squares in 2 ways, for example, as 42436 + 59049 = 206^2 + 243^2 .

It is a cyclic number.

It is not a de Polignac number, because 101485 - 21 = 101483 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 (101483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10144 + ... + 10153.

It is an arithmetic number, because the mean of its divisors is an integer number (30447).

2101485 is an apocalyptic number.

It is an amenable number.

101485 is a deficient number, since it is larger than the sum of its proper divisors (20303).

101485 is an equidigital number, since it uses as much as digits as its factorization.

101485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20302.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 101485 is about 318.5671043909. The cubic root of 101485 is about 46.6445189690.

Adding to 101485 its reverse (584101), we get a palindrome (685586).

It can be divided in two parts, 10148 and 5, that added together give a triangular number (10153 = T142).

The spelling of 101485 in words is "one hundred one thousand, four hundred eighty-five".

Divisors: 1 5 20297 101485