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242030825 = 529681233
BaseRepresentation
bin11100110110100…
…01100011101001
3121212102102212122
432123101203221
5443424441300
640003321025
75666141141
oct1633214351
9555372778
10242030825
11114690383
1269080175
133b1b230a
1424203921
15163acc85
hexe6d18e9

242030825 has 6 divisors (see below), whose sum is σ = 300118254. Its totient is φ = 193624640.

The previous prime is 242030821. The next prime is 242030827. The reversal of 242030825 is 528030242.

It can be written as a sum of positive squares in 3 ways, for example, as 290521 + 241740304 = 539^2 + 15548^2 .

It is not a de Polignac number, because 242030825 - 22 = 242030821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242030794 and 242030803.

It is not an unprimeable number, because it can be changed into a prime (242030821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4840592 + ... + 4840641.

It is an arithmetic number, because the mean of its divisors is an integer number (50019709).

Almost surely, 2242030825 is an apocalyptic number.

242030825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242030825 is a deficient number, since it is larger than the sum of its proper divisors (58087429).

242030825 is an equidigital number, since it uses as much as digits as its factorization.

242030825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9681243 (or 9681238 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 242030825 is about 15557.3399075806. The cubic root of 242030825 is about 623.1944262016.

The spelling of 242030825 in words is "two hundred forty-two million, thirty thousand, eight hundred twenty-five".

Divisors: 1 5 25 9681233 48406165 242030825