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4250681 = 6763443
BaseRepresentation
bin10000001101110000111001
321222221211122
4100031300321
52042010211
6231035025
751062441
oct20156071
97887748
104250681
112443666
12150ba75
13b5a9c6
147c9121
1558e6db
hex40dc39

4250681 has 4 divisors (see below), whose sum is σ = 4314192. Its totient is φ = 4187172.

The previous prime is 4250657. The next prime is 4250711. The reversal of 4250681 is 1860524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4250681 - 222 = 56377 is a prime.

It is a super-2 number, since 2×42506812 = 36136577927522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4250681.

It is not an unprimeable number, because it can be changed into a prime (4250611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31655 + ... + 31788.

It is an arithmetic number, because the mean of its divisors is an integer number (1078548).

Almost surely, 24250681 is an apocalyptic number.

It is an amenable number.

4250681 is a deficient number, since it is larger than the sum of its proper divisors (63511).

4250681 is an equidigital number, since it uses as much as digits as its factorization.

4250681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63510.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 4250681 is about 2061.7179729536. The cubic root of 4250681 is about 161.9892412710.

The spelling of 4250681 in words is "four million, two hundred fifty thousand, six hundred eighty-one".

Divisors: 1 67 63443 4250681