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242890 = 25107227
BaseRepresentation
bin111011010011001010
3110100011221
4323103022
530233030
65112254
72031064
oct732312
9410157
10242890
1115653a
12b868a
138672b
1464734
154be7a
hex3b4ca

242890 has 16 divisors (see below), whose sum is σ = 443232. Its totient is φ = 95824.

The previous prime is 242887. The next prime is 242911. The reversal of 242890 is 98242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 957 + ... + 1183.

It is an arithmetic number, because the mean of its divisors is an integer number (27702).

2242890 is an apocalyptic number.

242890 is a deficient number, since it is larger than the sum of its proper divisors (200342).

242890 is a wasteful number, since it uses less digits than its factorization.

242890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 242890 is about 492.8387160116. The cubic root of 242890 is about 62.3930972531.

The spelling of 242890 in words is "two hundred forty-two thousand, eight hundred ninety".

Divisors: 1 2 5 10 107 214 227 454 535 1070 1135 2270 24289 48578 121445 242890