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100663 = 432341
BaseRepresentation
bin11000100100110111
312010002021
4120210313
511210123
62054011
7566323
oct304467
9163067
10100663
11696a2
124a307
1336a84
1428983
151ec5d
hex18937

100663 has 4 divisors (see below), whose sum is σ = 103048. Its totient is φ = 98280.

The previous prime is 100649. The next prime is 100669. The reversal of 100663 is 366001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 100663 - 29 = 100151 is a prime.

It is a Duffinian number.

100663 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100669) 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, 1128 + ... + 1213.

It is an arithmetic number, because the mean of its divisors is an integer number (25762).

2100663 is an apocalyptic number.

100663 is a deficient number, since it is larger than the sum of its proper divisors (2385).

100663 is an equidigital number, since it uses as much as digits as its factorization.

100663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 100663 is about 317.2743292484. The cubic root of 100663 is about 46.5182415808.

Adding to 100663 its reverse (366001), we get a palindrome (466664).

The spelling of 100663 in words is "one hundred thousand, six hundred sixty-three".

Divisors: 1 43 2341 100663