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8302109 = 10380603
BaseRepresentation
bin11111101010111000011101
3120121210100112
4133222320131
54111131414
6453535405
7130365254
oct37527035
916553315
108302109
114760552
122944565
131948aba
14116179b
15aded3e
hex7eae1d

8302109 has 4 divisors (see below), whose sum is σ = 8382816. Its totient is φ = 8221404.

The previous prime is 8302061. The next prime is 8302123. The reversal of 8302109 is 9012038.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8302109 is a prime.

It is a super-3 number, since 3×83021093 (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8302159) 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, 40199 + ... + 40404.

It is an arithmetic number, because the mean of its divisors is an integer number (2095704).

Almost surely, 28302109 is an apocalyptic number.

It is an amenable number.

8302109 is a deficient number, since it is larger than the sum of its proper divisors (80707).

8302109 is a wasteful number, since it uses less digits than its factorization.

8302109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80706.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 8302109 is about 2881.3380572227. The cubic root of 8302109 is about 202.4865326612.

The spelling of 8302109 in words is "eight million, three hundred two thousand, one hundred nine".

Divisors: 1 103 80603 8302109