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232404505 = 5243719073
BaseRepresentation
bin11011101101000…
…11011000011001
3121012022101001021
431312203120121
5433443421010
635021122441
75521256104
oct1566433031
9535271037
10232404505
1110a205a43
12659b9421
13391c1878
1422c1973b
151560a8da
hexdda3619

232404505 has 8 divisors (see below), whose sum is σ = 279014472. Its totient is φ = 185837568.

The previous prime is 232404503. The next prime is 232404517. The reversal of 232404505 is 505404232.

It can be written as a sum of positive squares in 4 ways, for example, as 14930496 + 217474009 = 3864^2 + 14747^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 232404505 - 21 = 232404503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 232404505.

It is not an unprimeable number, because it can be changed into a prime (232404503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2649 + ... + 21721.

It is an arithmetic number, because the mean of its divisors is an integer number (34876809).

Almost surely, 2232404505 is an apocalyptic number.

It is an amenable number.

232404505 is a deficient number, since it is larger than the sum of its proper divisors (46609967).

232404505 is a wasteful number, since it uses less digits than its factorization.

232404505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21515.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 232404505 is about 15244.8189559601. The cubic root of 232404505 is about 614.8202748895.

Adding to 232404505 its reverse (505404232), we get a palindrome (737808737).

The spelling of 232404505 in words is "two hundred thirty-two million, four hundred four thousand, five hundred five".

Divisors: 1 5 2437 12185 19073 95365 46480901 232404505