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232809472949 = 263388419853
BaseRepresentation
bin1101100011010010000…
…1101010001110110101
3211020220220002121020012
43120310201222032311
512303243211113244
6254541242550005
722551143604044
oct3306441521665
9736826077205
10232809472949
118a8089728a9
1239153508305
1318c5277a1b1
14b3a76d855b
1560c8a5989e
hex363486a3b5

232809472949 has 4 divisors (see below), whose sum is σ = 232897895436. Its totient is φ = 232721050464.

The previous prime is 232809472921. The next prime is 232809472967. The reversal of 232809472949 is 949274908232.

It is a happy number.

232809472949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 119100912100 + 113708560849 = 345110^2 + 337207^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-232809472949 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 (232809472849) 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 in 3 ways as a sum of consecutive naturals, for example, 44207294 + ... + 44212559.

It is an arithmetic number, because the mean of its divisors is an integer number (58224473859).

Almost surely, 2232809472949 is an apocalyptic number.

It is an amenable number.

232809472949 is a deficient number, since it is larger than the sum of its proper divisors (88422487).

232809472949 is an equidigital number, since it uses as much as digits as its factorization.

232809472949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88422486.

The product of its (nonzero) digits is 15676416, while the sum is 59.

The spelling of 232809472949 in words is "two hundred thirty-two billion, eight hundred nine million, four hundred seventy-two thousand, nine hundred forty-nine".

Divisors: 1 2633 88419853 232809472949