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5538387 = 31846129
BaseRepresentation
bin10101001000001001010011
3101102101020110
4111020021103
52404212022
6314412403
765034621
oct25101123
911371213
105538387
113143088
121a31103
1311bbb6a
14a42511
1574600c
hex548253

5538387 has 4 divisors (see below), whose sum is σ = 7384520. Its totient is φ = 3692256.

The previous prime is 5538371. The next prime is 5538431. The reversal of 5538387 is 7838355.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5538387 - 24 = 5538371 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5538317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 923062 + ... + 923067.

It is an arithmetic number, because the mean of its divisors is an integer number (1846130).

Almost surely, 25538387 is an apocalyptic number.

5538387 is a deficient number, since it is larger than the sum of its proper divisors (1846133).

5538387 is a wasteful number, since it uses less digits than its factorization.

5538387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846132.

The product of its digits is 100800, while the sum is 39.

The square root of 5538387 is about 2353.3777852270. The cubic root of 5538387 is about 176.9271301432.

Subtracting 5538387 from its reverse (7838355), we obtain a cube (2299968 = 1323).

The spelling of 5538387 in words is "five million, five hundred thirty-eight thousand, three hundred eighty-seven".

Divisors: 1 3 1846129 5538387