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240620 = 22553227
BaseRepresentation
bin111010101111101100
3110020001212
4322233230
530144440
65053552
72021342
oct725754
9406055
10240620
11154866
12b72b8
13856a3
1463992
154b465
hex3abec

240620 has 24 divisors (see below), whose sum is σ = 517104. Its totient is φ = 94016.

The previous prime is 240607. The next prime is 240623. The reversal of 240620 is 26042.

It is a junction number, because it is equal to n+sod(n) for n = 240595 and 240604.

It is not an unprimeable number, because it can be changed into a prime (240623) by changing a digit.

240620 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 7 ways as a sum of consecutive naturals, for example, 947 + ... + 1173.

It is an arithmetic number, because the mean of its divisors is an integer number (21546).

2240620 is an apocalyptic number.

240620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240620 is an abundant number, since it is smaller than the sum of its proper divisors (276484).

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

240620 is a wasteful number, since it uses less digits than its factorization.

240620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 240620 is about 490.5303252603. The cubic root of 240620 is about 62.1981175528.

Adding to 240620 its reverse (26042), we get a palindrome (266662).

The spelling of 240620 in words is "two hundred forty thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 53 106 212 227 265 454 530 908 1060 1135 2270 4540 12031 24062 48124 60155 120310 240620