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16386245 = 54617109
BaseRepresentation
bin111110100000…
…100011000101
31010211111200222
4332200203011
513143324440
61343114125
7256165211
oct76404305
933744628
1016386245
119282257
1255a2945
133519605
142267941
15168a2b5
hexfa08c5

16386245 has 8 divisors (see below), whose sum is σ = 19708920. Its totient is φ = 13078720.

The previous prime is 16386239. The next prime is 16386269. The reversal of 16386245 is 54268361.

It can be written as a sum of positive squares in 4 ways, for example, as 16129 + 16370116 = 127^2 + 4046^2 .

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

It is not a de Polignac number, because 16386245 - 210 = 16385221 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 1250 + ... + 5859.

It is an arithmetic number, because the mean of its divisors is an integer number (2463615).

Almost surely, 216386245 is an apocalyptic number.

It is an amenable number.

16386245 is a deficient number, since it is larger than the sum of its proper divisors (3322675).

16386245 is an equidigital number, since it uses as much as digits as its factorization.

16386245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7575.

The product of its digits is 34560, while the sum is 35.

The square root of 16386245 is about 4047.9927124440. The cubic root of 16386245 is about 253.9957684210.

The spelling of 16386245 in words is "sixteen million, three hundred eighty-six thousand, two hundred forty-five".

Divisors: 1 5 461 2305 7109 35545 3277249 16386245