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5281938 = 232293441
BaseRepresentation
bin10100001001100010010010
3100221100110100
4110021202102
52323010223
6305113230
762616144
oct24114222
910840410
105281938
112a88442
121928816
13112c20c
149b6c94
156e5043
hex509892

5281938 has 12 divisors (see below), whose sum is σ = 11444238. Its totient is φ = 1760640.

The previous prime is 5281937. The next prime is 5281949. The reversal of 5281938 is 8391825.

It can be written as a sum of positive squares in only one way, i.e., 4422609 + 859329 = 2103^2 + 927^2 .

It is not an unprimeable number, because it can be changed into a prime (5281937) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 146703 + ... + 146738.

Almost surely, 25281938 is an apocalyptic number.

5281938 is an abundant number, since it is smaller than the sum of its proper divisors (6162300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5281938 is a wasteful number, since it uses less digits than its factorization.

5281938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293449 (or 293446 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 5281938 is about 2298.2467230478. The cubic root of 5281938 is about 174.1530559736.

The spelling of 5281938 in words is "five million, two hundred eighty-one thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 9 18 293441 586882 880323 1760646 2640969 5281938