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5505138 = 233971051
BaseRepresentation
bin10101000000000001110010
3101100200122000
4111000001302
52402131023
6313554430
764535652
oct25000162
911320560
105505138
113120101
121a15a16
1311a99a2
14a34362
1573b243
hex540072

5505138 has 32 divisors (see below), whose sum is σ = 12371520. Its totient is φ = 1814400.

The previous prime is 5505133. The next prime is 5505139. The reversal of 5505138 is 8315055.

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

It is not an unprimeable number, because it can be changed into a prime (5505133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4713 + ... + 5763.

It is an arithmetic number, because the mean of its divisors is an integer number (386610).

Almost surely, 25505138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5505138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6185760).

5505138 is an abundant number, since it is smaller than the sum of its proper divisors (6866382).

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

5505138 is a wasteful number, since it uses less digits than its factorization.

5505138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159 (or 1153 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 5505138 is about 2346.3030494802. The cubic root of 5505138 is about 176.5723661127.

The spelling of 5505138 in words is "five million, five hundred five thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 9 18 27 54 97 194 291 582 873 1051 1746 2102 2619 3153 5238 6306 9459 18918 28377 56754 101947 203894 305841 611682 917523 1835046 2752569 5505138