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242380 = 22512119
BaseRepresentation
bin111011001011001100
3110022111001
4323023030
530224010
65110044
72026435
oct731314
9408431
10242380
11156116
12b8324
1386428
146448c
154bc3a
hex3b2cc

242380 has 12 divisors (see below), whose sum is σ = 509040. Its totient is φ = 96944.

The previous prime is 242377. The next prime is 242393. The reversal of 242380 is 83242.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6040 + ... + 6079.

It is an arithmetic number, because the mean of its divisors is an integer number (42420).

2242380 is an apocalyptic number.

242380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242380 is an abundant number, since it is smaller than the sum of its proper divisors (266660).

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

242380 is a wasteful number, since it uses less digits than its factorization.

242380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12128 (or 12126 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 242380 is about 492.3210334731. The cubic root of 242380 is about 62.3493973932.

The spelling of 242380 in words is "two hundred forty-two thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 12119 24238 48476 60595 121190 242380