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4489881 = 311136057
BaseRepresentation
bin10001001000001010011001
322110002221220
4101020022121
52122134011
6240122253
753110014
oct21101231
98402856
104489881
112597350
121606389
13c12846
1484c37b
155da506
hex448299

4489881 has 8 divisors (see below), whose sum is σ = 6530784. Its totient is φ = 2721120.

The previous prime is 4489861. The next prime is 4489883. The reversal of 4489881 is 1889844.

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

It is not a de Polignac number, because 4489881 - 215 = 4457113 is a prime.

It is a super-2 number, since 2×44898812 = 40318062788322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4489883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67996 + ... + 68061.

It is an arithmetic number, because the mean of its divisors is an integer number (816348).

Almost surely, 24489881 is an apocalyptic number.

It is an amenable number.

4489881 is a deficient number, since it is larger than the sum of its proper divisors (2040903).

4489881 is a wasteful number, since it uses less digits than its factorization.

4489881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136071.

The product of its digits is 73728, while the sum is 42.

The square root of 4489881 is about 2118.9339300696. The cubic root of 4489881 is about 164.9725206763.

The spelling of 4489881 in words is "four million, four hundred eighty-nine thousand, eight hundred eighty-one".

Divisors: 1 3 11 33 136057 408171 1496627 4489881