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10816385 = 56133529
BaseRepresentation
bin101001010000…
…101110000001
3202100112021212
4221100232001
510232111020
61023455505
7160636436
oct51205601
922315255
1010816385
116118568
123757595
132319338
141617b8d
15e39cc5
hexa50b81

10816385 has 8 divisors (see below), whose sum is σ = 13004520. Its totient is φ = 8636544.

The previous prime is 10816381. The next prime is 10816387. The reversal of 10816385 is 58361801.

It can be written as a sum of positive squares in 4 ways, for example, as 824464 + 9991921 = 908^2 + 3161^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 10816385 - 22 = 10816381 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10816381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1301 + ... + 4829.

It is an arithmetic number, because the mean of its divisors is an integer number (1625565).

Almost surely, 210816385 is an apocalyptic number.

It is an amenable number.

10816385 is a deficient number, since it is larger than the sum of its proper divisors (2188135).

10816385 is an equidigital number, since it uses as much as digits as its factorization.

10816385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4147.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 10816385 is about 3288.8272985975. The cubic root of 10816385 is about 221.1536165031.

The spelling of 10816385 in words is "ten million, eight hundred sixteen thousand, three hundred eighty-five".

Divisors: 1 5 613 3065 3529 17645 2163277 10816385