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242430025 = 5219510379
BaseRepresentation
bin11100111001100…
…11000001001001
3121220011201110211
432130303001021
5444030230100
640020041121
76002423035
oct1634630111
9556151424
10242430025
111149332a2
12692331a1
133b2c1c26
14242a91c5
151643b1ba
hexe733049

242430025 has 12 divisors (see below), whose sum is σ = 316435600. Its totient is φ = 183736080.

The previous prime is 242430017. The next prime is 242430029. The reversal of 242430025 is 520034242.

It is not a de Polignac number, because 242430025 - 23 = 242430017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242429978 and 242430005.

It is not an unprimeable number, because it can be changed into a prime (242430029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 254715 + ... + 255664.

Almost surely, 2242430025 is an apocalyptic number.

242430025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242430025 is a deficient number, since it is larger than the sum of its proper divisors (74005575).

242430025 is a wasteful number, since it uses less digits than its factorization.

242430025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510408 (or 510403 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 242430025 is about 15570.1645784494. The cubic root of 242430025 is about 623.5368654525.

Adding to 242430025 its reverse (520034242), we get a palindrome (762464267).

The spelling of 242430025 in words is "two hundred forty-two million, four hundred thirty thousand, twenty-five".

Divisors: 1 5 19 25 95 475 510379 2551895 9697201 12759475 48486005 242430025