Search a number
-
+
2018988 = 2232173299
BaseRepresentation
bin111101100111010101100
310210120112100
413230322230
51004101423
6111135100
723106156
oct7547254
93716470
102018988
111159994
12814490
13558c8a
143a7ad6
1529d343
hex1eceac

2018988 has 36 divisors (see below), whose sum is σ = 5405400. Its totient is φ = 633216.

The previous prime is 2018987. The next prime is 2018993. The reversal of 2018988 is 8898102.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2018981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1038 + ... + 2261.

It is an arithmetic number, because the mean of its divisors is an integer number (150150).

22018988 is an apocalyptic number.

It is an amenable number.

2018988 is an abundant number, since it is smaller than the sum of its proper divisors (3386412).

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

2018988 is a wasteful number, since it uses less digits than its factorization.

2018988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326 (or 3321 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 2018988 is about 1420.9109753957. The cubic root of 2018988 is about 126.3895727926.

The spelling of 2018988 in words is "two million, eighteen thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 17 18 34 36 51 68 102 153 204 306 612 3299 6598 9897 13196 19794 29691 39588 56083 59382 112166 118764 168249 224332 336498 504747 672996 1009494 2018988