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4489381 = 131512287
BaseRepresentation
bin10001001000000010100101
322110002021101
4101020002211
52122130011
6240120101
753105401
oct21100245
98402241
104489381
112596a36
121606031
13c12550
1484c101
155da2c1
hex4480a5

4489381 has 8 divisors (see below), whose sum is σ = 4868864. Its totient is φ = 4114800.

The previous prime is 4489367. The next prime is 4489409. The reversal of 4489381 is 1839844.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4489381 - 213 = 4481189 is a prime.

It is a super-2 number, since 2×44893812 = 40309083526322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4489381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4489351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820 + ... + 3106.

It is an arithmetic number, because the mean of its divisors is an integer number (608608).

Almost surely, 24489381 is an apocalyptic number.

It is an amenable number.

4489381 is a deficient number, since it is larger than the sum of its proper divisors (379483).

4489381 is a wasteful number, since it uses less digits than its factorization.

4489381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451.

The product of its digits is 27648, while the sum is 37.

The square root of 4489381 is about 2118.8159429266. The cubic root of 4489381 is about 164.9663965851.

The spelling of 4489381 in words is "four million, four hundred eighty-nine thousand, three hundred eighty-one".

Divisors: 1 13 151 1963 2287 29731 345337 4489381