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234250809 = 3136006431
BaseRepresentation
bin11011111011001…
…10001000111001
3121022210011200220
431331212020321
5434432011214
635124450253
75543045652
oct1575461071
9538704626
10234250809
11110257111
1266549989
13396ba060
142317a529
15158729a9
hexdf66239

234250809 has 8 divisors (see below), whose sum is σ = 336360192. Its totient is φ = 144154320.

The previous prime is 234250789. The next prime is 234250813. The reversal of 234250809 is 908052432.

It is a happy number.

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

It is not a de Polignac number, because 234250809 - 211 = 234248761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 234250809.

It is not an unprimeable number, because it can be changed into a prime (234250859) 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, 3003177 + ... + 3003254.

It is an arithmetic number, because the mean of its divisors is an integer number (42045024).

Almost surely, 2234250809 is an apocalyptic number.

It is an amenable number.

234250809 is a deficient number, since it is larger than the sum of its proper divisors (102109383).

234250809 is a wasteful number, since it uses less digits than its factorization.

234250809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6006447.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 234250809 is about 15305.2542938691. The cubic root of 234250809 is about 616.4440993089. Note that the first 3 decimals are identical.

The spelling of 234250809 in words is "two hundred thirty-four million, two hundred fifty thousand, eight hundred nine".

Divisors: 1 3 13 39 6006431 18019293 78083603 234250809