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243248242 = 2121624121
BaseRepresentation
bin11100111111110…
…10110001110010
3121221201021212011
432133322301302
5444232420432
640045353134
76012401356
oct1637726162
9557637764
10243248242
11115342006
12695687aa
133b51a493
142443d466
151654d847
hexe7fac72

243248242 has 4 divisors (see below), whose sum is σ = 364872366. Its totient is φ = 121624120.

The previous prime is 243248237. The next prime is 243248261. The reversal of 243248242 is 242842342.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 207619281 + 35628961 = 14409^2 + 5969^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60812059 + ... + 60812062.

Almost surely, 2243248242 is an apocalyptic number.

243248242 is a deficient number, since it is larger than the sum of its proper divisors (121624124).

243248242 is a wasteful number, since it uses less digits than its factorization.

243248242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121624123.

The product of its digits is 24576, while the sum is 31.

The square root of 243248242 is about 15596.4176014878. The cubic root of 243248242 is about 624.2375701393.

The spelling of 243248242 in words is "two hundred forty-three million, two hundred forty-eight thousand, two hundred forty-two".

Divisors: 1 2 121624121 243248242