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4991838 = 232113943
BaseRepresentation
bin10011000010101101011110
3100101121111220
4103002231132
52234214323
6254554210
760300315
oct23025536
910347456
104991838
1128aa495
121808966
13105a167
1493d27c
156890e3
hex4c2b5e

4991838 has 16 divisors (see below), whose sum is σ = 10033536. Its totient is φ = 1655640.

The previous prime is 4991803. The next prime is 4991839. The reversal of 4991838 is 8381994.

4991838 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 4991838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4991839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706 + ... + 3237.

It is an arithmetic number, because the mean of its divisors is an integer number (627096).

Almost surely, 24991838 is an apocalyptic number.

4991838 is an abundant number, since it is smaller than the sum of its proper divisors (5041698).

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

4991838 is a wasteful number, since it uses less digits than its factorization.

4991838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4159.

The product of its digits is 62208, while the sum is 42.

The square root of 4991838 is about 2234.2421533934. The cubic root of 4991838 is about 170.9044985014.

The spelling of 4991838 in words is "four million, nine hundred ninety-one thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 211 422 633 1266 3943 7886 11829 23658 831973 1663946 2495919 4991838