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4405069 = 31142099
BaseRepresentation
bin10000110011011101001101
322021210121201
4100303131031
52111430234
6234225501
752304524
oct20633515
98253551
104405069
112539659
121585291
13bb3066
148294bb
155c0314
hex43374d

4405069 has 4 divisors (see below), whose sum is σ = 4547200. Its totient is φ = 4262940.

The previous prime is 4405067. The next prime is 4405073. The reversal of 4405069 is 9605044.

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 4405069 - 21 = 4405067 is a prime.

It is a super-2 number, since 2×44050692 = 38809265789522, 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 (4405067) 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, 71019 + ... + 71080.

It is an arithmetic number, because the mean of its divisors is an integer number (1136800).

Almost surely, 24405069 is an apocalyptic number.

It is an amenable number.

4405069 is a deficient number, since it is larger than the sum of its proper divisors (142131).

4405069 is a wasteful number, since it uses less digits than its factorization.

4405069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142130.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 4405069 is about 2098.8256240098. The cubic root of 4405069 is about 163.9271563273.

The spelling of 4405069 in words is "four million, four hundred five thousand, sixty-nine".

Divisors: 1 31 142099 4405069