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242032431 = 3199714373
BaseRepresentation
bin11100110110100…
…01111100101111
3121212102112002010
432123101330233
5443430014211
640003332303
75666145624
oct1633217457
9555375063
10242032431
11114691603
1269081093
133b1b2c74
142420434b
15163ad4a6
hexe6d1f2f

242032431 has 16 divisors (see below), whose sum is σ = 340122240. Its totient is φ = 152670240.

The previous prime is 242032391. The next prime is 242032433. The reversal of 242032431 is 134230242.

It is not a de Polignac number, because 242032431 - 26 = 242032367 is a prime.

It is a super-2 number, since 2×2420324312 = 117159395311539522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242032398 and 242032407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242032433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53161 + ... + 57533.

It is an arithmetic number, because the mean of its divisors is an integer number (21257640).

Almost surely, 2242032431 is an apocalyptic number.

242032431 is a deficient number, since it is larger than the sum of its proper divisors (98089809).

242032431 is a wasteful number, since it uses less digits than its factorization.

242032431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5366.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 242032431 is about 15557.3915230028. The cubic root of 242032431 is about 623.1958046045.

Adding to 242032431 its reverse (134230242), we get a palindrome (376262673).

The spelling of 242032431 in words is "two hundred forty-two million, thirty-two thousand, four hundred thirty-one".

Divisors: 1 3 19 57 971 2913 4373 13119 18449 55347 83087 249261 4246183 12738549 80677477 242032431