Search a number
-
+
260392 = 23112269
BaseRepresentation
bin111111100100101000
3111020012011
4333210220
531313032
65325304
72133106
oct774450
9436164
10260392
11168700
12106834
13916a2
146ac76
1552247
hex3f928

260392 has 24 divisors (see below), whose sum is σ = 538650. Its totient is φ = 117920.

The previous prime is 260387. The next prime is 260399. The reversal of 260392 is 293062.

It can be written as a sum of positive squares in only one way, i.e., 256036 + 4356 = 506^2 + 66^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (260399) by changing a digit.

260392 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 834 + ... + 1102.

2260392 is an apocalyptic number.

260392 is a gapful number since it is divisible by the number (22) 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 260392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269325).

260392 is an abundant number, since it is smaller than the sum of its proper divisors (278258).

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

260392 is a wasteful number, since it uses less digits than its factorization.

260392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 260392 is about 510.2861942087. The cubic root of 260392 is about 63.8571030572.

The spelling of 260392 in words is "two hundred sixty thousand, three hundred ninety-two".

Divisors: 1 2 4 8 11 22 44 88 121 242 269 484 538 968 1076 2152 2959 5918 11836 23672 32549 65098 130196 260392