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260442 = 23371353
BaseRepresentation
bin111111100101011010
3111020021000
4333211122
531313232
65325430
72133210
oct774532
9436230
10260442
11168746
12106876
1391710
146acb0
155227c
hex3f95a

260442 has 64 divisors (see below), whose sum is σ = 725760. Its totient is φ = 67392.

The previous prime is 260441. The next prime is 260453. The reversal of 260442 is 244062.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4888 + ... + 4940.

It is an arithmetic number, because the mean of its divisors is an integer number (11340).

2260442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362880).

260442 is an abundant number, since it is smaller than the sum of its proper divisors (465318).

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

260442 is a wasteful number, since it uses less digits than its factorization.

260442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 260442 is about 510.3351839723. The cubic root of 260442 is about 63.8611900374.

The spelling of 260442 in words is "two hundred sixty thousand, four hundred forty-two".

Divisors: 1 2 3 6 7 9 13 14 18 21 26 27 39 42 53 54 63 78 91 106 117 126 159 182 189 234 273 318 351 371 378 477 546 689 702 742 819 954 1113 1378 1431 1638 2067 2226 2457 2862 3339 4134 4823 4914 6201 6678 9646 10017 12402 14469 18603 20034 28938 37206 43407 86814 130221 260442