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16243085 = 53248617
BaseRepresentation
bin111101111101…
…100110001101
31010120020022202
4331331212031
513124234320
61340051245
7255030635
oct75754615
933506282
1016243085
119194741
125533b25
1334993c1
14222b6c5
15165cb75
hexf7d98d

16243085 has 4 divisors (see below), whose sum is σ = 19491708. Its totient is φ = 12994464.

The previous prime is 16243079. The next prime is 16243091. The reversal of 16243085 is 58034261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58034261 = 67866183.

It is an interprime number because it is at equal distance from previous prime (16243079) and next prime (16243091).

It can be written as a sum of positive squares in 2 ways, for example, as 7873636 + 8369449 = 2806^2 + 2893^2 .

It is a cyclic number.

It is not a de Polignac number, because 16243085 - 26 = 16243021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1624304 + ... + 1624313.

It is an arithmetic number, because the mean of its divisors is an integer number (4872927).

Almost surely, 216243085 is an apocalyptic number.

It is an amenable number.

16243085 is a deficient number, since it is larger than the sum of its proper divisors (3248623).

16243085 is an equidigital number, since it uses as much as digits as its factorization.

16243085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3248622.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 16243085 is about 4030.2710826941. The cubic root of 16243085 is about 253.2539176664.

The spelling of 16243085 in words is "sixteen million, two hundred forty-three thousand, eighty-five".

Divisors: 1 5 3248617 16243085