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107247 = 375107
BaseRepresentation
bin11010001011101111
312110010010
4122023233
511412442
62144303
7624450
oct321357
9173103
10107247
1173638
1252093
1339a7a
142b127
1521b9c
hex1a2ef

107247 has 8 divisors (see below), whose sum is σ = 163456. Its totient is φ = 61272.

The previous prime is 107243. The next prime is 107251. The reversal of 107247 is 742701.

It is an interprime number because it is at equal distance from previous prime (107243) and next prime (107251).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 107247 - 22 = 107243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5107 = 107247 / (1 + 0 + 7 + 2 + 4 + 7).

It is a Duffinian number.

107247 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107243) 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 7 ways as a sum of consecutive naturals, for example, 2533 + ... + 2574.

It is an arithmetic number, because the mean of its divisors is an integer number (20432).

2107247 is an apocalyptic number.

107247 is a deficient number, since it is larger than the sum of its proper divisors (56209).

107247 is an equidigital number, since it uses as much as digits as its factorization.

107247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5117.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 107247 is about 327.4858775581. The cubic root of 107247 is about 47.5110962073.

Adding to 107247 its reverse (742701), we get a palindrome (849948).

It can be divided in two parts, 10724 and 7, that added together give a triangular number (10731 = T146).

The spelling of 107247 in words is "one hundred seven thousand, two hundred forty-seven", and thus it is an iban number.

Divisors: 1 3 7 21 5107 15321 35749 107247