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5538213 = 3671107
BaseRepresentation
bin10101001000000110100101
3101102101000000
4111020012211
52404210323
6314411513
765034252
oct25100645
911371000
105538213
113142a3a
121a30b99
1311bba65
14a42429
15745e43
hex5481a5

5538213 has 28 divisors (see below), whose sum is σ = 8499168. Its totient is φ = 3606120.

The previous prime is 5538199. The next prime is 5538223. The reversal of 5538213 is 3128355.

It is not a de Polignac number, because 5538213 - 26 = 5538149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5538223) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 51706 + ... + 51812.

Almost surely, 25538213 is an apocalyptic number.

It is an amenable number.

5538213 is a deficient number, since it is larger than the sum of its proper divisors (2960955).

5538213 is an equidigital number, since it uses as much as digits as its factorization.

5538213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 181 counting only the distinct ones).

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

The square root of 5538213 is about 2353.3408167964. The cubic root of 5538213 is about 176.9252772786.

The spelling of 5538213 in words is "five million, five hundred thirty-eight thousand, two hundred thirteen".

Divisors: 1 3 9 27 71 81 107 213 243 321 639 729 963 1917 2889 5751 7597 8667 17253 22791 26001 51759 68373 78003 205119 615357 1846071 5538213