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242379 = 3347191
BaseRepresentation
bin111011001011001011
3110022111000
4323023023
530224004
65110043
72026434
oct731313
9408430
10242379
11156115
12b8323
1386427
146448b
154bc39
hex3b2cb

242379 has 16 divisors (see below), whose sum is σ = 368640. Its totient is φ = 157320.

The previous prime is 242377. The next prime is 242393. The reversal of 242379 is 973242.

It is not a de Polignac number, because 242379 - 21 = 242377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 23 + 48 + 310 + 27 + 76 + 9 .

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (242371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1174 + ... + 1364.

It is an arithmetic number, because the mean of its divisors is an integer number (23040).

2242379 is an apocalyptic number.

242379 is a deficient number, since it is larger than the sum of its proper divisors (126261).

242379 is a wasteful number, since it uses less digits than its factorization.

242379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 241 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 242379 is about 492.3200178746. The cubic root of 242379 is about 62.3493116470.

The spelling of 242379 in words is "two hundred forty-two thousand, three hundred seventy-nine".

Divisors: 1 3 9 27 47 141 191 423 573 1269 1719 5157 8977 26931 80793 242379