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5538231 = 325631093
BaseRepresentation
bin10101001000000110110111
3101102101000200
4111020012313
52404210411
6314411543
765034306
oct25100667
911371020
105538231
113142a56
121a30bb3
1311bba7a
14a4243d
15745e56
hex5481b7

5538231 has 12 divisors (see below), whose sum is σ = 8021208. Its totient is φ = 3682224.

The previous prime is 5538223. The next prime is 5538233. The reversal of 5538231 is 1328355.

5538231 is a `hidden beast` number, since 553 + 82 + 31 = 666.

It is not a de Polignac number, because 5538231 - 23 = 5538223 is a prime.

It is a super-2 number, since 2×55382312 = 61344005218722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5538195 and 5538204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5538233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4521 + ... + 5613.

It is an arithmetic number, because the mean of its divisors is an integer number (668434).

Almost surely, 25538231 is an apocalyptic number.

5538231 is a deficient number, since it is larger than the sum of its proper divisors (2482977).

5538231 is a wasteful number, since it uses less digits than its factorization.

5538231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662 (or 1659 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 5538231 is about 2353.3446411437. The cubic root of 5538231 is about 176.9254689561.

The spelling of 5538231 in words is "five million, five hundred thirty-eight thousand, two hundred thirty-one".

Divisors: 1 3 9 563 1093 1689 3279 5067 9837 615359 1846077 5538231