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2038009 = 5338453
BaseRepresentation
bin111110001100011111001
310211112121211
413301203321
51010204014
6111403121
723215501
oct7614371
93745554
102038009
111172206
128234a1
1356482c
143b0a01
152a3cc4
hex1f18f9

2038009 has 4 divisors (see below), whose sum is σ = 2076516. Its totient is φ = 1999504.

The previous prime is 2037979. The next prime is 2038019. The reversal of 2038009 is 9008302.

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 1272384 + 765625 = 1128^2 + 875^2 .

It is a cyclic number.

It is not a de Polignac number, because 2038009 - 27 = 2037881 is a prime.

It is a Duffinian number.

2038009 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2038019) 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, 19174 + ... + 19279.

It is an arithmetic number, because the mean of its divisors is an integer number (519129).

22038009 is an apocalyptic number.

It is an amenable number.

2038009 is a deficient number, since it is larger than the sum of its proper divisors (38507).

2038009 is an equidigital number, since it uses as much as digits as its factorization.

2038009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38506.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 2038009 is about 1427.5885261517. The cubic root of 2038009 is about 126.7852406138.

The spelling of 2038009 in words is "two million, thirty-eight thousand, nine".

Divisors: 1 53 38453 2038009