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5538239 = 72341839
BaseRepresentation
bin10101001000000110111111
3101102101000222
4111020012333
52404210424
6314411555
765034320
oct25100677
911371028
105538239
113142a63
121a30bbb
1311bba85
14a42447
15745e5e
hex5481bf

5538239 has 16 divisors (see below), whose sum is σ = 6773760. Its totient is φ = 4424640.

The previous prime is 5538233. The next prime is 5538241. The reversal of 5538239 is 9328355.

It is a cyclic number.

It is not a de Polignac number, because 5538239 - 24 = 5538223 is a prime.

It is a super-2 number, since 2×55382392 = 61344182442242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5538199 and 5538208.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6182 + ... + 7020.

It is an arithmetic number, because the mean of its divisors is an integer number (423360).

Almost surely, 25538239 is an apocalyptic number.

5538239 is a deficient number, since it is larger than the sum of its proper divisors (1235521).

5538239 is a wasteful number, since it uses less digits than its factorization.

5538239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910.

The product of its digits is 32400, while the sum is 35.

The square root of 5538239 is about 2353.3463408517. The cubic root of 5538239 is about 176.9255541459.

The spelling of 5538239 in words is "five million, five hundred thirty-eight thousand, two hundred thirty-nine".

Divisors: 1 7 23 41 161 287 839 943 5873 6601 19297 34399 135079 240793 791177 5538239