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242044431 = 3509915823
BaseRepresentation
bin11100110110101…
…00111000001111
3121212110010112120
432123110320033
5443430410211
640003504023
75666225616
oct1633247017
9555403476
10242044431
1111469a622
1269088013
133b1b8575
142420887d
15163b1d06
hexe6d4e0f

242044431 has 8 divisors (see below), whose sum is σ = 322809600. Its totient is φ = 161321112.

The previous prime is 242044409. The next prime is 242044457. The reversal of 242044431 is 134440242.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 242044431 - 26 = 242044367 is a prime.

It is a super-2 number, since 2×2420444312 = 117171013156227522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242044631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7386 + ... + 23208.

It is an arithmetic number, because the mean of its divisors is an integer number (40351200).

Almost surely, 2242044431 is an apocalyptic number.

242044431 is a deficient number, since it is larger than the sum of its proper divisors (80765169).

242044431 is a wasteful number, since it uses less digits than its factorization.

242044431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20925.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 242044431 is about 15557.7771869891. Note that the first 3 decimals coincide. The cubic root of 242044431 is about 623.2061038112.

Adding to 242044431 its reverse (134440242), we get a palindrome (376484673).

The spelling of 242044431 in words is "two hundred forty-two million, forty-four thousand, four hundred thirty-one".

Divisors: 1 3 5099 15297 15823 47469 80681477 242044431