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542340 = 2232523131
BaseRepresentation
bin10000100011010000100
31000112221200
42010122010
5114323330
615342500
74416111
oct2043204
91015850
10542340
11340517
12221a30
1315cb16
14101908
15aaa60
hex84684

542340 has 72 divisors (see below), whose sum is σ = 1729728. Its totient is φ = 137280.

The previous prime is 542323. The next prime is 542371. The reversal of 542340 is 43245.

It is a happy number.

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

It is a nialpdrome in base 15.

It is an unprimeable number.

542340 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 23 ways as a sum of consecutive naturals, for example, 4075 + ... + 4205.

It is an arithmetic number, because the mean of its divisors is an integer number (24024).

2542340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (864864).

542340 is an abundant number, since it is smaller than the sum of its proper divisors (1187388).

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

542340 is a wasteful number, since it uses less digits than its factorization.

542340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 542340 is about 736.4373700458. The cubic root of 542340 is about 81.5499837666.

Adding to 542340 its reverse (43245), we get a palindrome (585585).

The spelling of 542340 in words is "five hundred forty-two thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 23 30 36 45 46 60 69 90 92 115 131 138 180 207 230 262 276 345 393 414 460 524 655 690 786 828 1035 1179 1310 1380 1572 1965 2070 2358 2620 3013 3930 4140 4716 5895 6026 7860 9039 11790 12052 15065 18078 23580 27117 30130 36156 45195 54234 60260 90390 108468 135585 180780 271170 542340