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243244934 = 2121622467
BaseRepresentation
bin11100111111110…
…01111110000110
3121221201010022122
432133321332012
5444232314214
640045325542
76012355622
oct1637717606
9557633278
10243244934
1111533a579
12695668b2
133b518b1a
142443c182
151654c88e
hexe7f9f86

243244934 has 4 divisors (see below), whose sum is σ = 364867404. Its totient is φ = 121622466.

The previous prime is 243244933. The next prime is 243244957. The reversal of 243244934 is 439442342.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 439442342 = 2219721171.

It is a junction number, because it is equal to n+sod(n) for n = 243244894 and 243244903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243244933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60811232 + ... + 60811235.

It is an arithmetic number, because the mean of its divisors is an integer number (91216851).

Almost surely, 2243244934 is an apocalyptic number.

243244934 is a deficient number, since it is larger than the sum of its proper divisors (121622470).

243244934 is a wasteful number, since it uses less digits than its factorization.

243244934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121622469.

The product of its digits is 82944, while the sum is 35.

The square root of 243244934 is about 15596.3115511329. The cubic root of 243244934 is about 624.2347404001.

The spelling of 243244934 in words is "two hundred forty-three million, two hundred forty-four thousand, nine hundred thirty-four".

Divisors: 1 2 121622467 243244934