Search a number
-
+
288708 = 22372491
BaseRepresentation
bin1000110011111000100
3112200000220
41012133010
533214313
610104340
72311500
oct1063704
9480026
10288708
11187a02
1211b0b0
13a1544
1477300
155a823
hex467c4

288708 has 36 divisors (see below), whose sum is σ = 785232. Its totient is φ = 82320.

The previous prime is 288697. The next prime is 288731. The reversal of 288708 is 807882.

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 343 + ... + 833.

It is an arithmetic number, because the mean of its divisors is an integer number (21812).

2288708 is an apocalyptic number.

288708 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 288708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (392616).

288708 is an abundant number, since it is smaller than the sum of its proper divisors (496524).

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

288708 is a wasteful number, since it uses less digits than its factorization.

288708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 288708 is about 537.3155497471. The cubic root of 288708 is about 66.0926156130.

The spelling of 288708 in words is "two hundred eighty-eight thousand, seven hundred eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 491 588 982 1473 1964 2946 3437 5892 6874 10311 13748 20622 24059 41244 48118 72177 96236 144354 288708