Search a number
-
+
288009030 = 23519505279
BaseRepresentation
bin10001001010101…
…010101101000110
3202001221101010010
4101022222231012
51042212242110
644325011050
710065015321
oct2112525506
9661841103
10288009030
111386344a1
1280553a86
134788cc5a
142a3717b8
151a441020
hex112aab46

288009030 has 32 divisors (see below), whose sum is σ = 727603200. Its totient is φ = 72760032.

The previous prime is 288008953. The next prime is 288009037. The reversal of 288009030 is 30900882.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288009037) 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 15 ways as a sum of consecutive naturals, for example, 252070 + ... + 253209.

It is an arithmetic number, because the mean of its divisors is an integer number (22737600).

Almost surely, 2288009030 is an apocalyptic number.

288009030 is an abundant number, since it is smaller than the sum of its proper divisors (439594170).

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

288009030 is a wasteful number, since it uses less digits than its factorization.

288009030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505308.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 288009030 is about 16970.8287953182. The cubic root of 288009030 is about 660.3923516519.

The spelling of 288009030 in words is "two hundred eighty-eight million, nine thousand, thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 505279 1010558 1515837 2526395 3031674 5052790 7579185 9600301 15158370 19200602 28800903 48001505 57601806 96003010 144004515 288009030