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4690681 = 10614421
BaseRepresentation
bin10001111001001011111001
322211022101221
4101321023321
52200100211
6244312041
754604312
oct21711371
98738357
104690681
1127141a6
1216a2621
13c83068
148a1609
15629c71
hex4792f9

4690681 has 4 divisors (see below), whose sum is σ = 4696164. Its totient is φ = 4685200.

The previous prime is 4690667. The next prime is 4690709. The reversal of 4690681 is 1860964.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3515625 + 1175056 = 1875^2 + 1084^2 .

It is a cyclic number.

It is not a de Polignac number, because 4690681 - 217 = 4559609 is a prime.

It is a super-2 number, since 2×46906812 = 44004976487522, which contains 22 as substring.

It is a Duffinian number.

4690681 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4690661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1150 + ... + 3271.

It is an arithmetic number, because the mean of its divisors is an integer number (1174041).

Almost surely, 24690681 is an apocalyptic number.

It is an amenable number.

4690681 is a deficient number, since it is larger than the sum of its proper divisors (5483).

4690681 is a wasteful number, since it uses less digits than its factorization.

4690681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5482.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 4690681 is about 2165.7980053551. The cubic root of 4690681 is about 167.3960861374.

The spelling of 4690681 in words is "four million, six hundred ninety thousand, six hundred eighty-one".

Divisors: 1 1061 4421 4690681