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45641069 = 89512821
BaseRepresentation
bin1010111000011…
…0110101101101
310011212210202222
42232012311231
543141003234
64310125125
71062641225
oct256066555
9104783688
1045641069
11238438a1
12133507a5
1395c0366
1460c1085
15401842e
hex2b86d6d

45641069 has 4 divisors (see below), whose sum is σ = 46153980. Its totient is φ = 45128160.

The previous prime is 45641053. The next prime is 45641081. The reversal of 45641069 is 96014654.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29560969 + 16080100 = 5437^2 + 4010^2 .

It is a cyclic number.

It is not a de Polignac number, because 45641069 - 24 = 45641053 is a prime.

It is a super-2 number, since 2×456410692 = 4166214358925522, 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 (45641009) 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, 256322 + ... + 256499.

It is an arithmetic number, because the mean of its divisors is an integer number (11538495).

Almost surely, 245641069 is an apocalyptic number.

It is an amenable number.

45641069 is a deficient number, since it is larger than the sum of its proper divisors (512911).

45641069 is an equidigital number, since it uses as much as digits as its factorization.

45641069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512910.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 45641069 is about 6755.8174190841. The cubic root of 45641069 is about 357.3704200534.

The spelling of 45641069 in words is "forty-five million, six hundred forty-one thousand, sixty-nine".

Divisors: 1 89 512821 45641069