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4763681 = 13366437
BaseRepresentation
bin10010001011000000100001
322222000112122
4102023000201
52204414211
6250034025
755330166
oct22130041
98860478
104763681
11276402a
121718915
13caa360
148c006d
156416db
hex48b021

4763681 has 4 divisors (see below), whose sum is σ = 5130132. Its totient is φ = 4397232.

The previous prime is 4763663. The next prime is 4763683. The reversal of 4763681 is 1863674.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1863674 = 2931837.

It can be written as a sum of positive squares in 2 ways, for example, as 286225 + 4477456 = 535^2 + 2116^2 .

It is a cyclic number.

It is not a de Polignac number, because 4763681 - 214 = 4747297 is a prime.

It is a super-2 number, since 2×47636812 = 45385313339522, which contains 22 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 (4763683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183206 + ... + 183231.

It is an arithmetic number, because the mean of its divisors is an integer number (1282533).

Almost surely, 24763681 is an apocalyptic number.

It is an amenable number.

4763681 is a deficient number, since it is larger than the sum of its proper divisors (366451).

4763681 is a wasteful number, since it uses less digits than its factorization.

4763681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366450.

The product of its digits is 24192, while the sum is 35.

The square root of 4763681 is about 2182.5858516906. The cubic root of 4763681 is about 168.2600022609.

The spelling of 4763681 in words is "four million, seven hundred sixty-three thousand, six hundred eighty-one".

Divisors: 1 13 366437 4763681