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243301357 = 1322116823
BaseRepresentation
bin11101000000001…
…11101111101101
3121221210222201101
432200013233231
5444241120412
640050443101
76013012255
oct1640075755
9557728641
10243301357
11115378a02
1269593491
133b538700
1424454965
151655e457
hexe807bed

243301357 has 12 divisors (see below), whose sum is σ = 264743904. Its totient is φ = 223488720.

The previous prime is 243301349. The next prime is 243301369. The reversal of 243301357 is 753103342.

It is not a de Polignac number, because 243301357 - 23 = 243301349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243301757) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32248 + ... + 39070.

It is an arithmetic number, because the mean of its divisors is an integer number (22061992).

Almost surely, 2243301357 is an apocalyptic number.

It is an amenable number.

243301357 is a deficient number, since it is larger than the sum of its proper divisors (21442547).

243301357 is a wasteful number, since it uses less digits than its factorization.

243301357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7060 (or 7047 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 243301357 is about 15598.1203034212. The cubic root of 243301357 is about 624.2830024177.

Adding to 243301357 its reverse (753103342), we get a palindrome (996404699).

The spelling of 243301357 in words is "two hundred forty-three million, three hundred one thousand, three hundred fifty-seven".

Divisors: 1 13 169 211 2743 6823 35659 88699 1153087 1439653 18715489 243301357