Search a number
-
+
288955030 = 257133110243
BaseRepresentation
bin10001001110010…
…001101010010110
3202010201102210011
4101032101222112
51042433030110
644401150434
710106035330
oct2116215226
9663642704
10288955030
11139120211
128092b41a
1347b31710
142a53a450
151a57b48a
hex11391a96

288955030 has 64 divisors (see below), whose sum is σ = 660860928. Its totient is φ = 88490880.

The previous prime is 288954997. The next prime is 288955031. The reversal of 288955030 is 30559882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288955031) 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 31 ways as a sum of consecutive naturals, for example, 23089 + ... + 33331.

It is an arithmetic number, because the mean of its divisors is an integer number (10325952).

Almost surely, 2288955030 is an apocalyptic number.

288955030 is an abundant number, since it is smaller than the sum of its proper divisors (371905898).

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

288955030 is a wasteful number, since it uses less digits than its factorization.

288955030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10301.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 288955030 is about 16998.6773014844. The cubic root of 288955030 is about 661.1146072571.

The spelling of 288955030 in words is "two hundred eighty-eight million, nine hundred fifty-five thousand, thirty".

Divisors: 1 2 5 7 10 13 14 26 31 35 62 65 70 91 130 155 182 217 310 403 434 455 806 910 1085 2015 2170 2821 4030 5642 10243 14105 20486 28210 51215 71701 102430 133159 143402 266318 317533 358505 635066 665795 717010 932113 1331590 1587665 1864226 2222731 3175330 4127929 4445462 4660565 8255858 9321130 11113655 20639645 22227310 28895503 41279290 57791006 144477515 288955030