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5018838 = 2311231223
BaseRepresentation
bin10011001001010011010110
3100102222112220
4103021103112
52241100323
6255323210
760442116
oct23112326
910388486
105018838
112918800
121820506
131069536
14949046
156920e3
hex4c94d6

5018838 has 48 divisors (see below), whose sum is σ = 11440128. Its totient is φ = 1465200.

The previous prime is 5018837. The next prime is 5018843. The reversal of 5018838 is 8388105.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 5018799 and 5018808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5018833) 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 23 ways as a sum of consecutive naturals, for example, 22395 + ... + 22617.

It is an arithmetic number, because the mean of its divisors is an integer number (238336).

Almost surely, 25018838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5018838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5720064).

5018838 is an abundant number, since it is smaller than the sum of its proper divisors (6421290).

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

5018838 is a wasteful number, since it uses less digits than its factorization.

5018838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 5018838 is about 2240.2763222424. The cubic root of 5018838 is about 171.2120757124.

It can be divided in two parts, 501 and 8838, that added together give a palindrome (9339).

The spelling of 5018838 in words is "five million, eighteen thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 11 22 31 33 62 66 93 121 186 223 242 341 363 446 669 682 726 1023 1338 2046 2453 3751 4906 6913 7359 7502 11253 13826 14718 20739 22506 26983 41478 53966 76043 80949 152086 161898 228129 456258 836473 1672946 2509419 5018838