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243055361 = 743327127
BaseRepresentation
bin11100111110010…
…11101100000001
3121221100111021102
432133023230001
5444210232421
640041304145
76010636133
oct1637135401
9557314242
10243055361
111152200aa
1269495055
133b480753
14243cd053
151651160b
hexe7cbb01

243055361 has 4 divisors (see below), whose sum is σ = 243383232. Its totient is φ = 242727492.

The previous prime is 243055349. The next prime is 243055363. The reversal of 243055361 is 163550342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243055361 - 210 = 243054337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243055363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162821 + ... + 164306.

It is an arithmetic number, because the mean of its divisors is an integer number (60845808).

Almost surely, 2243055361 is an apocalyptic number.

It is an amenable number.

243055361 is a deficient number, since it is larger than the sum of its proper divisors (327871).

243055361 is an equidigital number, since it uses as much as digits as its factorization.

243055361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327870.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 243055361 is about 15590.2328718977. The cubic root of 243055361 is about 624.0725324203.

The spelling of 243055361 in words is "two hundred forty-three million, fifty-five thousand, three hundred sixty-one".

Divisors: 1 743 327127 243055361