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4490069 = 6436983
BaseRepresentation
bin10001001000001101010101
322110010012212
4101020031111
52122140234
6240123205
753110403
oct21101525
98403185
104490069
112597501
121606505
13c1295c
1484c473
155da5ce
hex448355

4490069 has 4 divisors (see below), whose sum is σ = 4497696. Its totient is φ = 4482444.

The previous prime is 4490063. The next prime is 4490081. The reversal of 4490069 is 9600944.

It is a happy number.

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 4490069 - 24 = 4490053 is a prime.

It is a super-2 number, since 2×44900692 = 40321439249522, 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 (4490063) 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, 2849 + ... + 4134.

It is an arithmetic number, because the mean of its divisors is an integer number (1124424).

Almost surely, 24490069 is an apocalyptic number.

It is an amenable number.

4490069 is a deficient number, since it is larger than the sum of its proper divisors (7627).

4490069 is an equidigital number, since it uses as much as digits as its factorization.

4490069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7626.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 4490069 is about 2118.9782915358. The cubic root of 4490069 is about 164.9748232170.

The spelling of 4490069 in words is "four million, four hundred ninety thousand, sixty-nine".

Divisors: 1 643 6983 4490069